The halo effect refers to the fact that a certain positive characteristic of a person can dominate the way other people view that person.
The available evidence clearly shows that most Physical attractiveness is often one such characteristic. Research shows that we automatically attribute positive attributes to good-looking people, such as being talented, kind, honest, smart, agreeable, and trustworthy. Moreover, we are unaware of the role physical attractiveness plays in making these judgments. Some of the consequences of this unconscious assumption that good looks equals good scare me.
Think about it, would you be attracted to someone who is beautiful and have status, and then believe that he is good at everything?