I just figured it out:
Most of the richest people lie more vigorously and more often (commiting fraud) because they don't feel the consequences of wasting credibility. Because being rich, no matter how they got that money, automatically buys credibility and attention, without even spending it.
!!!!!!
(I am almost sorry for them, but not, because most were raised better and some have resisted the temptation to make a living being shit.)