rich more likely to lie, cheat, and break the law...,

ScienceMag | Observers of human nature have long puzzled over the possibility of an ethical class divide. On the one hand, people with fewer resources and dimmer prospects might be expected to do whatever's necessary to get ahead. On the other, wealthy types may be more focused on themselves, because money, independence, and freedom can insulate people from the plight of others. They may also be less generous: Studies involving money games show that upper-class subjects keep more for themselves, and U.S. surveys find that the rich give a smaller percentage of their income to charity than do the poor.

To see whether dishonesty varies with social class, psychologist Paul Piff of the University of California, Berkeley, and colleagues devised a series of tests, working with groups of 100 to 200 Berkeley undergraduates or adults recruited online. Subjects completed a standard gauge of their social status, placing an X on one of 10 rungs of a ladder representing their income, education, and how much respect their jobs might command compared with other Americans.

The team's findings suggest that privilege promotes dishonesty. For example, upper-class subjects were more likely to cheat. After five apparently random rolls of a computerized die for a chance to win an online gift certificate, three times as many upper-class players reported totals higher than 12—even though, unbeknownst to them, the game was rigged so that 12 was the highest possible score.

When participants were manipulated into thinking of themselves as belonging to a higher class than they did, the poorer ones, too, began to behave unethically. In one test, subjects were asked to compare themselves with people at the top or the bottom of the social scale (Donald Trump or a homeless person, for example.) They were then permitted to take candies from a jar ostensibly meant for a group of children in a nearby lab. Subjects whose role-playing raised their status in their own eyes took twice as many candies as those who compared themselves to "The Donald," the team reports online today in the Proceedings of the National Academy of Sciences.

In another test, participants were asked to list several benefits of greed; they were given the example that greed can help further one's professional goals, then asked to come up with three additional benefits. Again, lower-class subjects whose attitudes toward greed had been nudged in this way became just as likely as their wealthier counterparts to sympathize with dishonest behavior (taking home office supplies, laying off employees while increasing their own bonuses, overcharging customers to drive up profits).