I wouldn't find them offensive ... I just think they're in positions of resposibility and as such should portray that in their appearence, bearing and deportment.
I don't think it would make them any less qualified either, as, I suppose, this photo is supposed to show;
http://neatorama.cachefly.net/images...oed-doctor.jpg
I'm saying that people will, without a shadow of a doubt, without a second thought, instantly judge you if: you have a tattoo, an unusual piercing, an unusual dress sense, an unusual haircut, a physical disability, a mental disability, if you're too fat, too thin, wear glasses, have strange teeth (which, if you're American, is the whole of England apparently! He he!), have ginger hair, have NO hair ... (should I go on?)