Sure being attractive helps the attractive person more than anyone else, but I think there's enough surface area + network effects that a company full of attractive people will generally outperform a company of unattractive people of the same skill? For example while I'm sure I'd pretend it wasn't something I'm considering, given two similarly attractive offers and one very attractive interviewer I'd be foolish to consider myself unentangled in making that decision, try as I might.