There's an increasing amount of research around prosperity and empathy (and just plain decent behaviour) but here's a good introduction.
A growing body of recent research shows that people with the most social power pay scant attention to those with little such power. This tuning out has been observed, for instance, with strangers in a mere five-minute get-acquainted session, where the more powerful person shows fewer signals of paying attention, like nodding or laughing. Higher-status people are also more likely to express disregard, through facial expressions, and are more likely to take over the conversation and interrupt or look past the other speaker.
A prerequisite to empathy is simply paying attention to the person in pain. In 2008, social psychologists from the University of Amsterdam and the University of California, Berkeley, studied pairs of strangers telling one another about difficulties they had been through, like a divorce or death of a loved one. The researchers found that the differential expressed itself in the playing down of suffering. The more powerful were less compassionate toward the hardships described by the less powerful.
Dacher Keltner, a professor of psychology at Berkeley, and Michael W. Kraus, an assistant professor of psychology at the University of Illinois, Urbana-Champaign, have done much of the research on social power and the attention deficit.
Mr. Keltner suggests that, in general, we focus the most on those we value most. While the wealthy can hire help, those with few material assets are more likely to value their social assets: like the neighbor who will keep an eye on your child from the time she gets home from school until the time you get home from work. The financial difference ends up creating a behavioral difference. Poor people are better attuned to interpersonal relations — with those of the same strata, and the more powerful — than the rich are, because they have to be.
Read on . . .