The psychology of power: Absolutely

From The Economist reporting on studies of how people with power behave.

People with power that they think is justified break rules not only because they can get away with it, but also because they feel at some intuitive level that they are entitled to take what they want. This sense of entitlement is crucial to understanding why people misbehave in high office. In its absence, abuses will be less likely. The word “privilege” translates as “private law”. If Dr Lammers and Dr Galinsky are right, the sense which some powerful people seem to have that different rules apply to them is not just a convenient smoke screen. They genuinely believe it.