The pool of men who approach have a disproportionate number of men who seek sex as a priority You mean gay and asexual vs normal? Why would you approach a woman to make friends outside of a professional/hobby context? You're not in grade school.
I'm not sure why this is even up for debate. A relationship is about balance. "Transactions" are there to maintain that balance. Do you have a point to this at all or are you just having a shower thought?