For those who understand, no explanation is needed. For those who do not understand, no explanation is possible.
I love when people simplify things that are extremely complex to make a point on their behalf. The bottom line is with taxes someone is always going to be "getting screwed" and everyone is always going to complain.
By the way, why does everyone just focus on income tax and say the richest pay a higher rate than everyone else? Let's use Warren Buffet as an example. In 2006 he had taxable income of 46million and paid a 17.7% rate, while his receptionist paid a 30% rate. On one side she paid relatively more (lets say she paid 30k while he paid 8mil) yet on the other hand he paid a shit ton more money in.
People will always bitch about taxes and it is never going to be "fair"