Intelligence is inferred from appearance. That is a fact. There is evidence that judgments of intelligence are shared ("nerdy-looking") and even that they contain some accuracy. So far, probably no one is surprised. But there might not be any research into how clothing affects perceived intelligence. Intelligent people don't necessary dress well. (Again, "nerdy-looking.") Would you agree that unintelligent people seldom dress well and that, by dressing well in a poorly dressed society, a person shows he might be intelligent?