Also plenty of women are notorious for being hopelessly attracted to men who don't treat them right. The fact that rich and famous men are more likely to cheat doesn't keep them from getting women. If that was the case, who would date professional athletes?
Also, there's a catch-22 involved. Generally speaking, the more attracted you are to someone, the more other people are likely attracted as well. Think about it: who ever wants someone that NO ONE else wants? And if we're only as faithful as our options, as some say, then we've all got a needle to thread if we want to be with someone we really find attractive.
Of course, a lot of this cheating stuff can be eliminated by trying to only date people with actual integrity, but that's a whole other rant.