We are social animals or “zoon politicon” according to Aristotle. We play a social role. Moreover, when we rise to power, we feel important. Everybody says yes to us. Everybody would please us. This is not because we are special, because they have their own self-interest that we can facilitate. Leaders who have great power because he or she plays a great social role have the tendency to corrupt and abuse his or her power. Especially when he or she decides someone’s fate, the greater power someone has, the limitation should be greater. The classic experiments of Philip Zimbardo told us many lessons. One of them: we have to control power because power tends to corrupt. Not because we do not trust people, but because we are just “social animals”.

What makes these research great? The research in controversial from beginning, but it is a ground breaking one. Because it used near-perfect simulation of life prison.