Bill Gates thinks the super-wealthy should pay more tax – and plenty of rich people agree

• Bill Gates has often talked about imposing a tax on the wealthy. 
• He told the World Economic Forum that "those who have the most" should be more generous. 
• More than 250 wealthy individuals signed an open letter urging global leaders to tax the rich more.

Bill Gates wants ultra-wealthy individuals to pay more tax — and now a growing chorus of billionaires agree. 

In his annual "Ask Me Anything" forum on Reddit last year, the Microsoft cofounder said he was "surprised" that taxes for the rich haven't been increased more.