The Ingroup Illusion: How Modern Societies Hide Their Own Monsters

Why do modern societies so often imagine danger as something foreign, deviant, or external while overlooking the harms carried by their own most respectable insiders? Drawing on Joseph Henrich’s critique of WEIRD societies and Henri Tajfel’s work on social identity, this essay argues that the real psychological blind spot of modernity may be its tendency to mistake familiarity, prestige, and institutional fluency for moral safety.

We are often taught to imagine danger in a very particular way. It comes from elsewhere. It comes from outside the borders of whatever social world we have learned to regard as normal, civilised, and safe. It is imagined as foreign rather than familiar, deviant rather than respectable, visible rather than embedded. In childhood versions of the story, the threat is the wolf at the edge of the woods or the invader approaching the city walls. In adult political life, it becomes the criminal outsider, the hostile foreigner, the extremist, the deviant subculture, the threatening stranger. The details change, but the structure remains remarkably stable: danger is presumed to arrive from beyond the group, while safety is presumed to lie within it.

That way of seeing the world is not simply ideological, though ideologies certainly make use of it. It is also psychological. Human beings are social categorisers long before they are careful reasoners. We sort, simplify, and infer. We decide, often with very little evidence, who appears to belong, who appears not to, and what kinds of assumptions are invited by that distinction. In practice, this means that familiarity is often treated as a rough proxy for trustworthiness, while unfamiliarity becomes a rough proxy for threat. Modern societies flatter themselves that they have moved beyond such primitive reflexes, but it would be more accurate to say that they have refined them. The old tribal instinct has not disappeared. It has become more polite, more abstract, and more deeply woven into institutions that claim to stand above it.

That matters because some of the gravest forms of harm in modern societies do not come from obvious outsiders at all. They come from people who look as though they belong exactly where they are. They pass through respected schools, prestigious professions, political systems, elite cultural networks, philanthropic circles, corporate structures, and professionalised moral communities. They speak in the right register, display the right forms of self-command, and move comfortably within environments that are already coded as legitimate. When they cause harm, that harm often appears not as a dramatic assault upon the social order but as something far more difficult to confront: an abuse carried out from within the order itself, often under the protection of its own assumptions about who deserves to be trusted.

This is the central claim of this essay. Modern societies do not merely struggle to identify certain kinds of threat; they are psychologically and culturally organised in ways that make some threats easier to perceive than others. More specifically, they are highly attuned to dangers that appear external, disruptive, or culturally alien, while remaining far less adept at recognising the dangers posed by high-status insiders who are fluent in the signals of legitimacy. The result is a persistent asymmetry in moral attention. Outsiders are often over-read as sources of risk, while insiders, especially respectable and institutionally embedded insiders, are under-read in precisely the same terms.

To understand how this happens, it is useful to bring together two lines of thought that are not always placed side by side: Joseph Henrich’s work on WEIRD populations and Henri Tajfel’s work on social identity. Henrich’s argument helps explain how Western, educated, industrialised, rich, and democratic societies come to treat their own norms, habits, and models of personhood as if they were universal. Tajfel’s work explains how easily human beings begin to favour ingroups and distort their perceptions of outgroups, even when group distinctions are thin or arbitrary. Taken together, these perspectives point toward a troubling possibility. Societies that regard themselves as rational, modern, and morally advanced may nonetheless remain deeply vulnerable to one of the oldest errors in social judgment: the assumption that those who most resemble the group’s ideal self-image are least likely to be dangerous.

What follows is therefore not simply an argument about elites, corruption, or scandal, although all of those themes are relevant. It is an argument about perception itself. The deepest problem may not be that harmful insiders exist, since that should surprise no serious observer of history. The deeper problem is that our ordinary ways of sorting the world, reinforced by the prestige systems of modern societies, may systematically make such people harder to see.

WEIRD Societies and the Moral Prestige of Their Own Norms

Henrich’s critique of psychological science is often summarised as a problem of sampling. For decades, researchers built large sections of the discipline on participants drawn disproportionately from Western, educated, industrialised, rich, and democratic contexts, then presented their findings as if they revealed general truths about human nature. What was taken to be universal was often merely local, or at least much more culturally specific than the discipline had been willing to admit.

That point matters methodologically, but it matters philosophically as well. A society that repeatedly treats its own local arrangements as standard is doing more than making a technical research error. It is constructing a worldview in which its own preferred forms of reasoning, relating, and presenting oneself come to seem not merely familiar, but normatively superior. The WEIRD subject is not just a participant in psychological experiments. He becomes, implicitly, the model citizen of a moral order: literate, institutionally socialised, self-narrating, procedural, psychologically individuated, and fluent in systems of abstract trust. This figure appears measured, articulate, future-oriented, professionally legible, and emotionally governed. He does not just inhabit the society; he embodies what the society understands itself to be at its best.

There is nothing inherently sinister about many of these traits. Literacy, delayed gratification, bureaucratic coordination, and institutional trust can all be valuable social achievements. The problem arises when those features begin to carry an exaggerated moral charge. In WEIRD contexts, there is often a subtle but powerful drift whereby behavioural polish, institutional fluency, and self-management are treated not merely as useful capacities but as evidence of virtue. One is no longer simply dealing with a person who knows how to navigate the norms of a particular system. One is dealing with someone who feels trustworthy because he fits the prevailing image of what a trustworthy person looks like.

This is a crucial shift. It means that certain forms of social belonging become mistaken for indicators of character. The person who can perform the codes of competence and respectability begins to benefit from a halo effect that extends well beyond anything he has actually demonstrated. His accent, confidence, educational background, professional title, aesthetic restraint, and ease within elite environments all begin to function as proxies for seriousness and moral reliability. To borrow a darker formulation, the modern social order starts reading style as substance.

That is one of the ways modern societies hide their own monsters. They do not merely fail to notice harmful people. Rather, they help produce a class of harmful people who are especially difficult to perceive as harmful because they are adept at inhabiting the moral and aesthetic language of legitimacy. This is not quite the same as hypocrisy, which implies a fairly simple gap between public virtue and private vice. The issue runs deeper. The issue is that the signals modern societies use to infer trustworthiness are themselves open to strategic performance, and perhaps always were.

The WEIRD world often imagines itself as unusually rational in these matters. Because it relies on contracts, credentials, procedure, and codified norms, it assumes that trust has become less tribal and more evidence-based. Yet the reality may be more uncomfortable. What has changed is not necessarily that trust has become less socially biased, but that the cues through which bias operates have become more refined. In place of crude inherited deference, one gets meritocratic deference. In place of naked aristocracy, one gets institutional prestige. In place of overt tribal markers, one gets a professionalised culture of legitimacy. The form changes, but the underlying process remains recognisable: certain kinds of people are granted a presumption of moral safety because they appear to fit the social order’s preferred image of itself.

This matters especially when harm comes from those very people. A society that associates evil with obvious irrationality, crudity, or social backwardness will struggle to recognise exploitation when it is carried out by someone who seems impeccably socialised, highly competent, and thoroughly at home within respected institutions. The more civilised a society believes itself to be, the stronger the temptation to imagine that civilisation itself acts as a moral filter. Yet history offers little support for that flattering idea. The polished perpetrator is not a contradiction of modernity; he is often one of its most recognisable products.

Tajfel and the Architecture of Ingroup Bias

If Henrich helps explain how a particular social world comes to confer moral prestige upon its own norms, Tajfel helps explain why the members of that world are so ready to defend those who appear to belong securely within it. Social identity theory emerged from the deceptively simple observation that human beings begin favouring ingroups with astonishing ease. Even when groups are trivial, arbitrary, and practically meaningless, people still display a readiness to allocate benefits in ways that advantage “us” over “them.” The point is not merely that longstanding conflict produces bias. The point is that categorisation itself can be enough to set the process in motion.

This should give us pause when we think about the actual groups that structure modern life. After all, the relevant group boundaries here are not trivial at all in experiential terms. They are reinforced by class, education, profession, national identity, cultural style, media representation, and institutional power. They are stitched into everyday life through accents, schools, neighbourhoods, social networks, codes of taste, and assumptions about what seriousness looks like. Even if the moral superiority of the ingroup is illusory, the lived texture of membership is anything but thin. The group feels natural, substantial, and often simply identical with the world as it is supposed to be.

That naturalness is one of the reasons ingroup bias can be so hard to detect. Outgroups are noticed as groups. Ingroups, by contrast, are often experienced as reality itself. The outsider is marked, while the insider is unmarked. The former appears to us as an instance of a category; the latter appears as an individual person, a normal member of the social landscape, someone whose position needs no special explanation. This asymmetry has obvious consequences for moral judgment. The marked figure attracts suspicion in categorical terms, while the unmarked figure is more likely to be granted individuality, nuance, and interpretive charity.

One of the most important consequences of this process is that high-status insiders often receive a form of moral buffering. Their actions are less likely to be read as revelations of character and more likely to be absorbed into a cloud of explanation, context, and complexity. The same behaviour that would appear alarming in someone socially distant may be rendered ambiguous in someone socially familiar. The same accusation that would feel unsurprising when aimed at an outsider may strike observers as jarringly implausible when directed at a respected insider. This is not because the evidence has changed, but because the social meaning of the person has.

Groups do not simply protect themselves through explicit loyalty. More often, they do so through interpretive habits. They hesitate. They contextualise. They seek additional nuance. They worry about fairness, about overreach, about reputational damage, about the consequences of acting too quickly. In the abstract, these concerns are not unreasonable. A decent society should indeed care about fairness and due process. The difficulty is that such values are rarely distributed evenly. They are more often activated selectively, with particular intensity on behalf of people who already feel as though they belong within the moral community.

The effect can be profoundly distorting. Harmful insiders are not always defended in the sense of being openly endorsed. Often they are simply protected by the social reluctance to revise what they symbolise. To acknowledge that a polished, accomplished, institutionally validated member of the ingroup is dangerous requires more than recognising an individual moral failure. It requires revising the group’s assumptions about the reliability of its own signals of legitimacy. That is psychologically expensive. It is easier, and socially less disruptive, to preserve the image and treat the warning signs as anomalies.

Here the link between Tajfel and Henrich becomes especially important. Social identity theory helps explain why “our own” receive more interpretive charity; the critique of WEIRD norms helps explain why, in modern societies, “our own” often include those who most successfully embody the traits the society associates with moral adulthood. The result is a deeply resilient form of blindness. The more a person resembles the social ideal, the harder it may become to perceive him as a source of threat.

Why Outsiders Are More Legible as Threats

A society’s moral imagination is rarely neutral. It does not merely classify danger; it narrates it. Some figures appear within public consciousness as if they are already preloaded with symbolic risk. They can become vessels for diffuse anxieties about disorder, decline, contamination, violence, moral confusion, or cultural change. This is one reason outsiders are so often over-read. They are not encountered simply as individuals but as embodiments of broader fears.

The psychological mechanism is familiar enough. When people feel socially distant, they are more easily interpreted through category-based judgments. Their intentions seem less knowable, their behaviour less contextualised, their difference more salient. This does not require overt hatred. It can operate perfectly well through softer forms of unease, vaguer instincts of distrust, or a supposedly commonsense sense that “something feels off.” Once that process begins, the outsider becomes unusually legible as a potential problem. His actions fit too comfortably into pre-existing expectations about where danger is likely to come from.

The insider, by contrast, benefits from a different kind of legibility. He fits the environment. He already belongs to the background assumptions that define the setting as normal. Because of this, his dangerousness can become strangely hard to perceive, not because it leaves no trace, but because the trace is competing with a dense field of reassuring signals. He knows how to occupy the role. He wears legitimacy convincingly because legitimacy has often been trained into him from the start.

This creates a bleak asymmetry. Outsiders are often treated as suspicious beyond the evidence, while insiders are treated as trustworthy beyond the evidence. One group is over-examined; the other is under-examined. One group has its risks magnified; the other has its risks normalised, explained away, or simply overlooked. It would be comforting to imagine that modern education and procedural fairness have dissolved this asymmetry, but much of the evidence suggests otherwise. If anything, they may merely have changed the vocabulary in which the asymmetry is expressed.

This is one reason moral panic and institutional complacency can coexist so easily. A society may become extraordinarily animated by threats associated with unfamiliarity while remaining curiously passive in the face of harms rooted in its own centres of prestige. It can invest enormous emotional energy in boundary policing while neglecting the subtler, slower, and often more consequential forms of exploitation that emerge within highly normalised spaces. Public fear may be directed toward visible disruption, while private power continues to operate behind the veil of social confidence.

There is a further irony here. The very phrase “enemy from within” is often deployed in crude and dangerous ways, usually to intensify suspicion against dissenters, minorities, or internal critics. Yet stripped of that propagandistic use, the phrase names something psychologically real. Human beings are often less prepared to recognise threat when it arises from those who feel securely inside the boundaries of “us.” The problem is not that insiders are uniquely harmful. The problem is that they are often more difficult to see in those terms at all.

Respectability as a Form of Camouflage

Respectability is one of the most effective forms of camouflage modern societies have ever invented. Not because it makes wrongdoing impossible to detect in principle, but because it shapes the expectations through which evidence is interpreted. Once a person is securely associated with prestige, competence, good breeding, institutional seriousness, or moral concern, accusations against him tend to encounter a distinctive form of resistance. They do not merely seem troubling; they often seem incongruous. The person and the allegation are felt not to belong together.

That sense of incongruity is psychologically powerful. People often describe such moments in the language of shock or disbelief, but what they are really registering is a disruption of fit. The accusation does not line up with the symbolic role the accused has been allowed to occupy. If someone has spent years embodying the cues associated with discipline, intelligence, generosity, or public virtue, those cues create a reservoir of interpretive credit. New evidence must struggle not only against facts already believed but against a social image that has become morally over-invested.

This is why respectable wrongdoing can be so difficult for institutions to confront. The problem is not simply corruption or cowardice, though both exist. It is also the way prestige systems organise perception. Institutions are made of human beings, and human beings are susceptible to status, familiarity, and the comfort of inherited assumptions. The respectable insider does not always need an active conspiracy of protection. Often something more ordinary is sufficient: hesitation, reputational caution, faith in process, reluctance to disrupt, the instinctive feeling that surely a person like this cannot be what the allegations imply.

None of this requires occult secrecy or elaborate masterminding. Indeed, one of the more childish habits of public imagination is the tendency to mythologise elite wrongdoing into something excessively theatrical, as though power must always hide itself behind coded rituals or hidden chambers. The reality is usually more banal and therefore more disturbing. Harm survives quite effectively through class deference, institutional inertia, mutual dependence, and the reluctance of well-positioned people to force a moral reckoning that might implicate the networks they inhabit. A harmful insider may be protected less by grand design than by the ordinary unwillingness of socially validated people to believe the worst of those who mirror their own world.

Respectability also benefits from being morally ambiguous in the abstract. The signals that make someone appear trustworthy are not meaningless. Education, restraint, eloquence, public service, and social confidence can all be compatible with decency. That is precisely why they work so well as cover. Camouflage is not effective when it bears no resemblance to the environment. It works when it draws upon features that are often genuinely associated with safety, then uses them to lower vigilance even where safety is absent. The polished perpetrator does not need to invent a completely false language. He only needs to inhabit a legitimate one more fluently than the people observing him.

This is one of the reasons modern societies continue to underestimate insider harm. They tend to believe that because they no longer judge by bloodline or superstition alone, they must therefore be reading character through more rational means. Yet a society can abandon crude traditional markers and still remain deeply vulnerable to socially inherited illusions. It can become expert at reading the signs of success while remaining remarkably poor at distinguishing them from the signs of conscience.

The Moral Vanity of Modern Civilisation

Behind all of this lies a broader vanity. Modern civilised societies are deeply attached to the belief that barbarism lies elsewhere. It lies in the past, or abroad, or at the margins, or among those who seem insufficiently educated, insufficiently restrained, insufficiently modern. The self-image of the civilised order depends in part upon this contrast. It pictures itself as the domain in which rough passions have been disciplined, irrationality subdued, and violence brought under procedural control.

There is some truth in that self-description. Modern institutions can indeed reduce arbitrariness, coordinate large-scale cooperation, and place real constraints upon forms of overt domination. But the vanity begins when those achievements are mistaken for evidence that the society has transcended the older problems of status, tribalism, deference, and moral self-deception. In practice, civilisation often changes the style in which harm appears more than it changes the underlying human capacity for it.

The polished committee room can conceal cruelty just as effectively as the dark alley reveals it. The bureaucratic procedure can diffuse responsibility as effectively as the impulsive blow can personalise it. The person who knows how to speak the language of public reason, institutional caution, and measured concern may be capable of devastating harm while continuing to appear perfectly comprehensible as a steward of the social order. What modernity often achieves is not the disappearance of predation, but its refinement.

This is why there is something dangerously flattering about the common assumption that dangerous people look obviously dangerous. Very often they do not. They look accomplished, connected, well-regarded, emotionally controlled, or morally serious. Their threat is not theatrical enough for the cultural imagination that still wants evil to advertise itself. A great many people continue to expect vice to arrive crudely and virtue to arrive well-spoken. This is not a law of human character. It is a narrative convenience.

One might say, then, that modern societies are not only vulnerable to moral error but are vulnerable in ways specifically shaped by their own self-congratulation. The more they imagine themselves as rational and advanced, the more readily they may trust the polished cues through which that imagined advancement is expressed. The more they congratulate themselves on moving beyond primitive forms of judgment, the less likely they may be to notice how much of their trust still runs through culturally inherited status signals. Their prejudice becomes more sophisticated in presentation, but not necessarily less consequential.

What is most striking here is that the same features often celebrated as evidence of social progress can become laundering devices. Articulation, proceduralism, emotional control, institutional fluency, and public seriousness are all easy to mistake for indicators of inner discipline. Yet a person can possess every one of those traits and still be exploitative, predatory, or morally vacant. Indeed, those traits may make exploitation easier by helping him appear safer than he is.

The Enemy Within and the Psychology of Misrecognition

If one brings these threads together, a troubling picture emerges. WEIRD societies generate a culturally prestigious model of personhood and then attach moral significance to resemblance to that model. Social identity processes encourage members of those societies to extend more trust, more interpretive generosity, and more moral patience toward those who feel as though they belong securely within the ingroup. Outsiders, by contrast, remain more exposed to suspicion, simplification, and pre-emptive fear. The resulting pattern is not random. It directs scrutiny outward and diffuses it inward.

This does not mean that every respectable insider is dangerous, nor that every alert toward outsiders is merely prejudice. To say so would be childish. The point is more structural. Human beings and the institutions they build are not equally equipped to perceive all threats. We are better at recognising some patterns than others, and one of our most enduring weaknesses is a tendency to under-recognise danger when it arrives wearing our own approved symbols of legitimacy.

That weakness has immense practical implications. It helps explain why some scandals are met with disbelief long after the warning signs should have provoked serious concern. It helps explain why institutions often manage allegations as reputational crises rather than as evidence of earlier perceptual failure. It helps explain why some harms are framed as shocking aberrations even when they fit a recognisable pattern of power, access, and impunity. Again and again, the same surprise is performed: this cannot be true of him. But what often lies beneath that sentence is not a careful evidential judgment. It is the collapse of an aesthetic expectation. He did not look like the kind of person to whom such truths should attach.

The “enemy from within,” then, is not merely an individual wrongdoer concealed within the group. More deeply, it is the group’s own way of seeing. It is the psychological machinery that keeps converting familiarity into innocence, prestige into credibility, and institutional fit into presumed moral safety. A society may expend enormous energy defending itself from external threats while leaving these internal distortions largely untouched. Indeed, it may celebrate itself for its vigilance even as that vigilance is systematically misdirected.

There is something grimly elegant about this arrangement. The same social order that trains people to fear visible disorder may also train them to trust precisely those who are best positioned to exploit order from within. The same institutions that present themselves as filters of competence may help produce people whose greatest competence lies in performing trustworthiness. The same cultural world that prides itself on sophistication may remain deeply naïve about the moral unreliability of its own prestige signals.

This is why the problem is larger than hypocrisy or corruption in any ordinary sense. What is at stake is a civilisational habit of misrecognition. Modern societies may be structured not only to hide some monsters, but to manufacture conditions under which those monsters appear least monstrous at the moment when recognition matters most.

Simply Put

Henrich’s critique of WEIRD assumptions and Tajfel’s account of ingroup bias converge on a conclusion that modern societies rarely enjoy facing. We do not simply stereotype outsiders and favour insiders in some occasional, superficial way. We build moral worlds around those tendencies. We learn who looks plausible as a threat and who does not. We distribute suspicion unevenly, grant context selectively, and mistake socially rewarded traits for evidence of conscience. In doing so, we create the conditions for what might be called the WEIRD Halo Effect: the tendency to treat culturally prized markers such as education, polish, institutional fluency, composure, and professional success as signs not merely of competence, but of moral safety.

The disturbing implication is not merely that harmful insiders exist, nor even that institutions sometimes protect them. It is that the psychology of modern societies may be organised in ways that repeatedly make such people harder to perceive in the first place. The WEIRD Halo Effect helps explain why. The more closely a person resembles a society’s preferred image of the rational, respectable, accomplished adult, the more likely they are to inherit trust beyond the evidence. We remain drawn to stories in which danger comes from elsewhere because those stories flatter the group and preserve the hope that the familiar is safe. They allow societies to imagine themselves as embattled rather than complicit, vigilant rather than blinkered, threatened from outside rather than morally compromised from within.

Yet some of the most serious harms in modern life are carried not by obvious barbarians but by highly legible members of the civilised order. They are not hidden because no one can see them. They are hidden because too many of the signals we use to navigate the social world encourage us to read them wrongly for too long. The suit, the title, the poise, the institution, the public-minded language, the aura of seriousness: all can become part of a shield that is effective precisely because it resembles what we have been taught to trust. The WEIRD Halo Effect names that shield in psychological terms. It captures the process by which familiarity, prestige, and cultural fit become moralised, allowing dangerous insiders to appear safer than they are while those who sit further from the social ideal remain more exposed to suspicion.

Perhaps that is the real force of the ingroup illusion. It is not simply that societies fail to notice the monsters they produce. It is that they go on reading the very signs of social belonging as if those signs were evidence that monstrosity could not possibly be present. They search the margins for danger while mistaking the centre for proof of safety, and they do so with enough confidence to call the mistake common sense.

The walls, in other words, may never have been best at keeping the monsters out. They may always have been best at teaching us not to recognise the ones already inside.

References

Henrich, J. (2020). The weirdest people in the world: How the West became psychologically peculiar and particularly prosperous. Farrar, Straus and Giroux.

Henrich, J., Heine, S. J., & Norenzayan, A. (2010). The weirdest people in the world? Behavioral and Brain Sciences, 33(2-3), 61-83. https://doi.org/10.1017/S0140525X0999152X

Tajfel, H. (1970). Experiments in intergroup discrimination. Scientific American, 223(5), 96-102.

Tajfel, H., Billig, M. G., Bundy, R. P., & Flament, C. (1971). Social categorization and intergroup behaviour. European Journal of Social Psychology, 1(2), 149-178. https://doi.org/10.1002/ejsp.2420010202

Tajfel, H., & Turner, J. C. (1979). An integrative theory of intergroup conflict. In W. G. Austin & S. Worchel (Eds.), The social psychology of intergroup relations (pp. 33-47). Brooks/Cole.

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Table of Contents

The WEIRD Halo Effect

The WEIRD Halo Effect, coined by JC Pass (2026), is the tendency for people in Western, Educated, Industrialised, Rich, and Democratic societies to mistake WEIRD-coded traits such as education, polish, institutional fluency, composure, and professional success for signs not just of competence, but of moral safety.

The result is a culturally specific halo effect: the more closely a person resembles the society’s preferred image of a rational, respectable, accomplished adult, the more likely they are to inherit trust beyond the evidence. In practice, this can make harmful insiders harder to detect, while leaving outsiders and non-conforming figures more vulnerable to suspicion.