Philosophically, I agree, but in reality there are so many leeches, who take take take, their whole life, and in the end they are often better off, materialistically than the people, who provided the actual value.
replyAh but of course leeches are better off materialistically than the people who provide value! It's almost a tautology. But do you think they're happier?
replyFor example geohot could be vastly richer than he is if he wanted to. He wisely chooses not to, and advises others to do the same.