The creative director is always seen sporting a black leather jacket or tailored tuxedo jackets, oversized crisp white shirts, fingerless leather gloves, the fashionistas' staple.
It was always a grey or blue suit and a white shirt because he knew the science behind decision-making and that by wearing a kind of uniform he'd save bandwidth for the really important choices.
People who work in offices are frequently referred to as 'white-collar workers' for the simple reason that they usually wear a collar and tie to go to work.