For years, he has advocated policies to close the wealth gap, saying reforms are necessary for the nation's continued prosperity. Buffett has famously complained that he pays a lower tax rate than some of his most menial-wage employees. That's because, like many moguls, much of his income comes from capital gains and dividend payments, which are taxed at a lower rate than ordinary wages. His activism gave rise to Obama's proposed "Buffet rule," which would ensure that anyone making more than $1 million per year pay at least the same rate as middle-income taxpayers.