If you think MtGox takes too much, use other exchange. Or, better, start your own new exchange taking just 0.05% as you proposed. You will be happy, maybe we, too. Better not ask how much robbery fee I had to shell out to my bank to accept EURO SEPA payment from MtGox and convert it to my local currency.
If you think some have too much Bitcoins, you should CPU-mined them last year. When the price of electricity was larger than what was their price.
Check Google Finance. You will see buying Apple stock in 2003 also could make a lot of people insanely rich nowadays. Should they now give a part to you?
i have never said people MUST do something, and i never will. it their coins its them who decides what to do with them.
i DON'T want their coins.
i have never mined, and never will(except maybe try FPGA mining sometime, and then use is to do funny stuff on after)