Not all humans want to wield power over others and control them. Is there some defect in those who do or those who don't?

Power corrupts. Absolute power corrupts absolutely. Those statements will always be true. There's nothing wrong with using power, provided the holder of the power understands the difference between use and abuse. There will always be a need for leadership and decision making at all levels of human enterprise. I've held power. I've known people who have wielded power. I've had personal knowledge of persons who served time in prison for their misdeeds. I never desired the exercise of power and because I disdained power, I was regarded as some sort of deviant. Those who held that opinion usually were the ones that misused the authority entrusted to them.