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.

In many cases, people first try polyamory when they're enticed into it by an attractive potential partner. WrongBot gave an example - "The chance to date a pretty girl, though, can be sufficient motivation for a great many things (as is also the case with pretty boys)" - and I've seen it several times myself.

In many places, enticing previously-monogamous people is a polyamorist's only choice, because polyamory is so rare.