That's actually not the motivation. Every woman has an interest in increasing her sexual market value. Increasing your attractiveness has diminishing returns. 1 hour a day at the gym helps a lot, 2 hours only slightly more than 1. You're also limited by genetics. Some gals will never be above average even if she lives at the gym, because her genetics may give her the default body type of a Coke can.
Sure, female attractiveness is holistic, so she can prioritize other areas like wisdom, wit, and wealth to get up to a 7...but that's a LOT of work. And still not a match for the 6 figs, 6'5", blue eyed trust fund she deluded herself into believing she "deserved"
Or she can just spread her legs and suddenly 8+ men are willing to have sex with her. Years of dedicated effort for a 7, or five minutes of no standards to get T-Rash, the felon with a 6 pack.
Getting pregnant with a bastard child is easilt a -5 to SMV, hence why the "sell your soul to avoid it" is so popular.
Sure, those 8+ men wont commit to Becki the Coke-can shaped Wonderslut, but if you delude yourself long enough that your prince is coming...that really wont sink in until your 40s. And then the devil takes your soul, so long, enjoy the psych meds and no refunds.
It's similar to if the government offered men trust funds which they could ONLY spend on strippers and single moms. Would every guy take the trust fund for your soul deal? No. Would it garner a reliable bloc of single issue male voters? Obviously, because of their greed for unearned sexual market value.
Good analysis