it's not the amount of taxes, it's the percentage. Say I make $60,000 a year and pay $8,000 in taxes. Some guy who makes $500,000 a year pays $24,000 a year in taxes. Yes, he pays 3 times more than I do, but he makes almost 10 times more than I do. Shouldn't he pay the same percentage of taxes I do?
(These numbers are totally made up. I don't make $60,000 a year and I have no idea how much taxes someone making $500,000 a year would pay (I'd like to find out though!) I just used these numbers to illustrate a point.