For a long time, primatologists have known that chimpanzees will act out social dominance with a special ferociousness, slapping hands, stamping feet, or “charging back and forth and dragging huge branches,” as Jane Goodall once wrote. And sociologists and anthropologists have explored the effects of hierarchy in tribes and groups. But psychology has only recently begun seriously investigating how having money, that major marker of status in the modern world, affects psychosocial behavior in the species Homo sapiens. By making real people temporarily very affluent, without regard to their actual economic circumstances and within the controlled environment of a psych lab, the Berkeley researchers aim to demonstrate the potency of that one variable.
It is easy to see Piff’s research as ideologically motivated. The point is to “shed light on some of the consequences of social class,” he says. But whatever his goal, the “results are apolitical,” he says, and the data point in a clear direction. “Would I be less excited if we found that higher-status people were more generous?” he asks. “I’d probably be less excited, but that’s not what we found.”