It's not at all clear that all of Mozilo's earnings came from fraudulent activity. In fact, it's almost certainly true that this is not the case.
I think GP's point is that a $60M fine (against $520M in earnings) is not a an effective deterrent against such antisocial behavior.
I'm just saying that they aren't, as themagician asserted, lower than the actual gains from the frauds in question.