If you believe you are intelligent, yet you are unable to fit in society with basic hygiene, fashion sense, and social grace, then you aren't as intelligent as you might think.
Real intelligent people are, in average, more attractive that type-ideals of both. It's not a sum-zero game: intelligent people will understand that by being attractive more venues open to them, and they'll strive to work on it and improve their status.
To me, a nerd isn't intelligent. It's a social dweeb obsessed with a given subject that none gives a shit about, to the point of isolating himself or herself to escape the fact that he or she cannot cope with reality.