"So, first, I agree that a woman with known higher standards will impress your friends more if she selects you."
"I can't figure out the steps after that. Now, I already realize that this is not going to be how it works in Golarion, but in the non-monogamy mating market of dath ilan, the number of men a woman is simultaneously dating is determined by her ero regeneration rate, how many times per month she wants to have sex, divided by the number of times per month she wants to have sex with any one man. The quality of the men she fucks would be mainly determined by her own desirability on the informal mating market, what qualities she has that are in high demand and low supply, that sort of thing. The main correlation pathway would be if more men wanted to heavily date a low-supply monogamous version of her, than to shallowly date a high-supply nonmonogamous version of her, in which case being nonmonogamous would lower her mating market value, but it's not obvious to me that this is how things work particularly."
"Like, why can't you just have a woman with high standards who is herself desirable enough that she catches lots of people who meet her standards? See also, heiress to the Dark Unilateral Ruler and her harem of four men with different economicmagic powers."