CNBC 27 Feb 2012 : People have generally thought that people with combined average income of $270 million were probably paying a rate that was equal, says billionaire Warren Buffett, Berkshire Hathaway chairman/CEO. The code has shifted into the favor of the extremely wealthy, he says. ".... that's why the wealthy have seen -- they've seen their net worth, the net worth of the Forbes 400 since 1992 has gone from $300 billion to $1.5 trillion. you know, we have a system that has drifted toward favoring the ultrarich." Warren Buffett explained