Chads of all calibers are rare, whether it's Chadlite,GigaChad,Tyrone,Chaddam whatsoever and they all know this as well as many women, especially average women. Just think about it, do you think an average 5/10 foid would dump so much as a Chadlite without knowing if she'll be able to find another like him. Basically I think these Chads go for the average foids because the foids will treat him like a King, Stacies not so much, sure they'll fuck Chad, thing is though foids of all walks of life, but Stacies especially have orbiters around them 24/7, so they get their validation and satisfaction from them and Chads see this, while the orbiters cannot compete with said Chad individually, all of them together vs him alone kind of gives him some rough competition, an average foid wouldn't have no where near the amount of orbiters that a Stacy would have and Chads see this and they go for them knowing that the average Foid 1. has no where near as many orbiters as her Stacy counterparts and 2. Since all Chads are hard to come by the average foids will do anything to keep him around.
That's why I think these Chads go below their looksmatch. Just a theory at least.