That might not be entirely the case here. If you are far enough up the looks-ladder to be considered "good looking", that puts you in a much higher starting position relative to everyone else, especially other men. Because according to women, most men are ugly (or at least "less attractive than average"). I'd assume that if you're that conventionally attractive, you're going to get better treatment from other men too, even straight ones.
"Good looking" men are just very rare, it seems. It makes sense to me they'd get a bigger boost in socioeconomic rating from that alone. Less to share the spoils with, as it were.