"Dressing up is inevitably a substitute for good ideas. It is no coincidence that technically inept business types are known as "suits."
Paul Graham Programmer, Venture Capitalist
"Inevitable" correlation between the way people dress and the likelihood of good ideas coming from them?
Really? Back in the day, everyone wore suits; both those with bad as well as good ideas, just as today good and bad ideas (as well as good/bad programming and investment decisions) come from people wearing jeans and sandals.
Weight, presence or absence of hair, clothes, gender, ethnicity, age, etc., etc.; how (do) you factor that in when considering the likely ability of one to do the job you hire them to do?