The Economist has an interesting article about beauty and success, and notes that you can still discriminate against ugly people.
Just over a decade ago Dr Hamermesh presided over a series of surveys in the United States and Canada which showed that when all other things are taken into account, ugly people earn less than average incomes, while beautiful people earn more than the average. The ugliness "penalty" for men was -9% while the beauty premium was +5%. For women, perhaps surprisingly considering popular prejudices about the sexes, the effect was less: the ugliness penalty was -6% while the beauty premium was +4%.
Given this information, there could actually be a financial return on plastic surgery.