There also seems to be a tendency in the free market to concentrate wealth. Progressive taxes counter that, user fees enhance it because of the relative amounts paid by wealthy and poor.
Really? Progressive income taxes are a serious barrier to becoming wealthy. Progressive taxes protect the existing class of wealthy.
Joe Bigshot has a fortune of $100 million. Maybe he started the latest dotcom darling, maybe his grandfather was an oil baron. Whatever. He actually has very little income, but he is very wealthy. His wealth is invested in ways which provide him with a great lifestyle. He has a yacht, some nice cars, a few beautiful homes. All owned by the family trust or the family corporation naturally. Joe gets some relatively small pay for running the businesses, around $200k, which is taxed.
Billy Burgerman is a whiz bang business builder. He is hired by restaurants to come in and make them profitable. He is paid about $500k per year. Not bad.
Sam Skid is a professional truck driver, earning about $50k. Sam works hard.
Under a highly progressive tax system, Sam pays virtually no income tax. Billy pays a butt load of taxes, upwards of $350k per year. Because, you know, Billy is a high earner and that must be bad or something.
What are the chances of Sam or Billy ever being rich? Zero. Sam just doesn't have the earning power. He may be comfortable if he lives within his means. Billy will live nicely but not extravagantly. He can never amass vast wealth and be truly rich. He can be upper middle class.
But Joe is wealthy and stays that way. Regardless of income he still has more money in the bank than he ever needs even with a lavish lifestyle.
If you want to create a more equal outcome you would have to tax accumulated wealth not income. A low rate flat tax, or similar, gives the best chance for gaining wealth. The small business owner, inventor, creator, or highly paid skilled professional can keep their earnings to become wealthy.