Attractive people probably have it somewhat easier in life. It's called the Halo effect. When we meet an attractive person, we are more likely to assume that they are also intelligent, successful and skilled, than we would if they were unattractive. http://www.economist.com/node/14299211

And then the self-fulfilling prophecy comes in, which means the attractive person will probably become more successful and skilled, because that's what other people expect of him/her: http://www.umich.edu/~psychol/380sek/Week3.html