But in the larger context of “the psychological culture of wealth versus poverty,” says Paul K. Piff, a Ph.D. candidate in social psychology at the University of California, Berkeley, the paradox makes sense. Piff has made a specialty of studying those cultures in his lab at the Institute of Personality and Social Research, most recently in a series of experiments that tested “lower class” and “upper class” subjects (with earnings ranging from around $15,000 to more than $150,000 a year) to see what kind of psychological factors motivated the well-known differences in their giving behaviors. His study, written with Michael W. Kraus and published online last month by The Journal of Personality and Social Psychology, found that lower-income people were more generous, charitable, trusting and helpful to others than were those with more wealth. They were more attuned to the needs of others and more committed generally to the values of egalitarianism.

“Upper class” people, on the other hand, clung to values that “prioritized their own need.” And, he told me this week, “wealth seems to buffer people from attending to the needs of others.” Empathy and compassion appeared to be the key ingredients in the greater generosity of those with lower incomes. And these two traits proved to be in increasingly short supply as people moved up the income spectrum.

Image Credit... Source: The Center on Philanthropy at Indiana University, 2007.

This compassion deficit — the inability to empathetically relate to others’ needs — is perhaps not so surprising in a society that for decades has seen the experiential gap between the well-off and the poor (and even the middle class) significantly widen. The economist Frank Levy diagnosed such a split in his book “The New Dollars and Dreams: American Incomes and Economic Change,” published in the midst of the late-1990s tech boom. “The welfare state,” Levy wrote, “rests on enlightened self-interest in which people can look at beneficiaries and reasonably say, ‘There but for the grace of God. . . .’ As income differences widen, this statement rings less true.” A lack of identification with those in need may explain in part why a 2007 report from the Center on Philanthropy at Indiana University found that only a small percentage of charitable giving by the wealthy was actually going to the needs of the poor; instead it was mostly directed to other causes — cultural institutions, for example, or their alma maters — which often came with the not-inconsequential payoff of enhancing the donor’s status among his or her peers.

Given all this, it’s tempting to believe that there’s something intrinsic to the rich or the poor that explains their greater or lesser generosity and empathetic connection to others (i.e., rich people get rich because they like money more and are less distracted from their goals by the relational side of life), but Piff’s research points in a different direction. Piff found that if higher-income people were instructed to imagine themselves as lower class, they became more charitable. If they were primed by, say, watching a sympathy-eliciting video, they became more helpful to others — so much so, in fact, that the difference between their behavior and that of the low-income subjects disappeared. And fascinatingly, the inverse was true as well: when lower-income people were led to think of themselves as upper class, they actually became less altruistic.