Same reasons why I don't like psychologist. They think they're clever when they really aren't (most of them by the way).
Then there are those who have the disillusion that they are superior to other because they know so many languages. Plus those who take up dead languages.

I keep the idea of everyone being the same at some level. People have different thinking styles of thinking a specialize in other things.
Being a perfect person will require great physical appearance, the ability to rationalize quickly, quick to learn, able to understand instantly, have great deduction skills, and be able to socially survive.