I suspect that polyamory, or monogamy, may be a deeply wired preference for some people, and not something that is easily changed. For someone who is wired to be polyamorous, these status considerations seem less relevant or applicable. There still may be the risk or fear of social disapproval, but someone who is wired to be polyamorous is probably less likely to feel a personal status hit from having their partners sleep with other people.

For a substantial majority of men, they are not sufficiently attractive enough (overall, not specifically physically) to entice women into such a lifestyle. In other words, because women feel like they take a huge status hit being with a poly man, your average woman will only consider such a relationship with a man who might otherwise be out of her league

This seems to miss the point, which is that polyamory is a preference or orientation, not something that women need to be "enticed" into by high status or attractive men. (Compare: a lesbian would probably prefer a woman to a high status man.)