This tendency is arising due to "give-me-more" urge . Stinking rich men want to flaunt their wealth go for this kind of relationship. Hence, they address their target audience (yes! we do have a sizable group in the society who craves for this kind of relationship at times, when the relation gets soured, they intimidate their male partner here relation is not seen as a male's "releasing point" but as a "fleecing point" from a woman's point of view to articulate on this subject watch tamil film "chinna veedu"). Basically, all these issues should be addressed with a counselor not you municipal councilor (otherwise,your "mistresses" and your spouse as well,will be eloped with your "area councilor". After all, this relationship is gauged on male's net worthiness).
Come on ! everyone has a breaking point don't you fall into the trap of temptation.