The top 10% income is over a $173 thousand, that's a long way from being a billionaire.
The top 1% (over $524,000) pays 40% of the taxes
The top .005% (over 1.3 billion) pays 16% of the taxes
Since effective rate for an average family of 4 earning a billion of year in the US today is 8.2%, that means after taxes and average living expenses the family will have about $917 million dollars to spend on homes, yacht, planes, vacations, and the stock market. By comparison the same family earning 50 thousand a year will be piling up about 5 thousand.
And if we increase the tax rate by 5%, on our billionaire he might have to sell one his 5 homes, a yacht, and have only 500 or 600 million to put in the market each year.