The only good billionaire is a dead billionaire.

How about John Huntsman.

Jon Huntsman On Giving Away $1.2 Billion

In 1992 Jon Huntsman Sr. returned from a checkup with a bad diagnosis. He had prostate cancer. On the way to the hospital for treatment he made three stops. First he dropped by a homeless shelter and left a check for $1 million. Then the chemicals mogul stopped at a soup kitchen and handed over another check for $1 million

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. In 2009 Warren Buffett invited Huntsman to sign the Giving Pledge. Huntsman replied: "You don't have the formula right. It should be 80%. Why should someone who has $5 billion only give away $2.5 billion? They can't take it with them."