The corruption inherent in absolute power derives from the fact that such power is never free from the tendency to turn man into a thing, and press him back into the matrix of nature from which he has risen. For the impulse of power is to turn every variable into a constant, and give to commands the inexorableness and relentlessness of laws of nature. Hence absolute power corrupts even when exercised for humane purposes. The benevolent despot who sees himself as a shepherd of the people still demands from others the submissiveness of sheep. The taint inherent in absolute power is not its inhumanity but its anti-humanity.
This is from American Moral and social philosopher Eric Hoffer from Ch. 15: "The Unnaturalness Of Human Nature" of his book The Ordeal of Change (1963)
