Well, if we can't get away from lookism, we need to have ways to redistribute the effects, right? We do it with smarts (if we assume that, in the aggregate, smart people make more money), so why not with good looks? So, attractive people need to sleep with the uglies, and the more attractive they are, the more they should do it. We'll add a few fields to tax forms where you enter your hotornot.com score, and a few months later if you're ugly you get sex coupons to spend and beautiful people get an assigned amount of sex coupons to collect.

(I usually use this argument to argue against wealth redistribution and progressive taxing, but I guess it works the other way around too ;) )