FYI.
Allow me a somewhat different perspective...These very rich men have the natural desire to procreate, to have kids..I mena, they want/need someone to leave the $$$ to..but they are still bound enough by tradional and values NOT to have kids out of wedlock....so, ergo, they get married, have kids, get divorced, and repeat the process ad nauseum. The brood mare, er, wife of the moment, is perfectly willing to go along with the arrangement, because the kid guarantees her financial sercueity for life..