What about that ? I miss your point.Polygyny is a very successful reproductive strategy for male who gets access to those females. Perhaps you want to insinuate that the key to reproductive success is access to no females ?some men will get more women, but that does not automatically make him a reproductive success. what about polygamous cultures/societies where women are forced into marriage and they have high reproductive rate.
Second, the prerequisite to reproductive success from the pov of a male is access to as many females as possible, save for specific conditions when monogamy makes sense, for example in situations in which it takes two to raise the offspring.