At its worst, power can turn us into hypocrites. In a 2009 study, Mr. Galinsky asked subjects to think about either an experience of power or powerlessness. The students were then divided into two groups. The first group was told to rate, on a nine-point scale, the moral seriousness of misreporting travel expenses at work. The second group was asked to participate in a game of dice, in which the results of the dice determined the number of lottery tickets each student received. A higher roll led to more tickets.

Participants in the high-power group considered the misreporting of travel expenses to be a significantly worse offense. However, the game of dice produced a completely contradictory result. In this instance, people in the high-power group reported, on average, a statistically improbable result, with an average dice score that was 20% above that expected by random chance. (The powerless group, in contrast, reported only slightly elevated dice results.) This strongly suggests that they were lying about their actual scores, fudging the numbers to get a few extra tickets.

“Power corrupts; absolute power corrupts absolutely”