A question on psychology/philosophy

[🐒Gods of Prosperity🔱🐲💸]

I would distinguish between a person's "true nature" (their telos, in the Aristotelian-Christian tradition) and a person's "true character" ( their deepest values and hidden habits).

Having unlimited power does not mean one escapes the influence of others. Our need to be liked can be very motivating.  People in power may be able to disguise their motives, or alternatively have their true motives be suspect without just cause.  If one has little power, and so one must choose between undesirable options, that may be more revealing of one's character.