In one of John Taylor Gatto's books he brings up that Ivy League schools base part of their admissions process on the attractiveness of the applicant because they want to project a certain image. I'm not sure if this is true or not, and I can't find a citation, but it was in Weapons of Mass Instruction [1] I believe, but possibly Dumbing Us Down [2]. It was in his letter to his niece at the end of Weapons, if I recall correctly. I have also been told by a friend that is going to graduate school to an Ivy that it was part of the admissions process, though I'm not sure how she knew this (I believe told by a previous graduate).