"the rich are indeed different..." they are greedier.

A new study conducted by social psychologists at the University of California, Berkeley suggests that the wealthy are more likely to engage in selfish behavior. The research design combined direct observation with various experiments, and consistently found the rich more inclined than the non-affluent to take unethical advantage of the situation or actually cheat others. While readers access to the Piff, et al. article is limited by a pay-wall, descriptions of this research are available through various online pieces published over the past day (e.g., see ScienceNow, CNN, and Bloomberg).