Many people believe that power has a corrupting influence. After all, we all experienced that the behavior of some of our friends or acquaintances changed for the worse when they got a taste of power.
We might even feel that way about ourselves - that power corrupts us.
As our life changes, we experience many new and different situations. The decisions we make influence greatly how we see ourselves.
Power is closely tied to responsibility. It can be quite easy to gain power for a short period of time, but quite hard to keep that power without a sufficient level of responsibility.
Power does not corrupt, but it presents a new situation which the bearer of power can use to redefine himself. Without self-discipline or responsibility, power can become a mirror showing us an ugly image of ourselves.