Your comment on Gates is complete BS, Gates came from a upper middle class family as he Dad was a attorney in Seattle. Gates was not a trust fund kid as like say Paris Hilton, Gates family help him in the early days as his father helped with the legal work but he created his own wealth.  I have seen the Gates home where Bill grew up but it was nice but nothing super special.  Gates is not a trust fund kid, he did not inherit wealth.  He created his own wealth along with Bill Allen and the creation of Microsoft.  He of course has earned billions and of course that money is invested to make more billions and the money is then taxed at a lower rate than pure income.  So if your figure are correct than 80 percent of what he earns is taxed at a lower rate.  Bill was worth many times his father wealth within five years or less of starting Microsoft. Now Bill children will be trust fund kids.