I don't think it's as clear cut as you suggest. For example, Warren Buffett has earned a return on capital averaging around 20% over his life. This means he h

I don't think it's as clear cut as you suggest. For example, Warren Buffett has earned a return on capital averaging around 20% over his life. This means he had the choice of giving away, say, $1 million in 1970 or $1.5 billion in 2010. I think the second option is the better choice, even if it is technically not as 'altruistic'.