Recent experimental psychology suggests that the more power one has, the less one takes on the perspective of others, implying that the powerful have less empathy. Adam Galinsky, along with several coauthors, found that when those who are reminded of their powerlessness are instructed to draw Es on their forehead, they are 3 times more likely to draw them such that they are legible to others than those who are reminded of their power.[11][12] Powerful people are also more likely to take action. In one example, powerful people turned off an irritatingly close fan twice as much as less powerful people. Researchers have documented the "bystander effect": they found that powerful people are three times as likely to first offer help to a "stranger in distress".[13]
http://www.youtube.com/watch?v=qzU9OrZlKb8&ob=av2e