Some people are drivers of the economies, ideas and society. They should be rewarded for that, but there is a limit or else revolution at some point will break out.
Perhaps in the Capitalist world the rich should be taxed upon assets, not income. Society becomes less happy when there is a huge disparity between haves and have nots.
In the USA, wealth is worshiped above all else, but the masses are denied access to it by the rich, who then indoctrinate the masses into believing that taxation of their riches would be terrible, as socialism is theft of private property.
There is a balance point, look at Japan for an example.