Not wanting to get into an argument I just thought I'd make the point and be a bit defensive.
I realise you're only refering to managment types, but feeling defensive at the moment, just like to make it clear that I don't think anyone I know at the CTC really cares how scruffy you look, certainly not me, I think they're just surprised that's all. I've seen a few CTC based workers who appear more scruffy than any ATCO I've seen mind; they do look out of place - strangley they always seem to be union members!
There's a time and a place; if you have a meeting with external clients and you have to give a good impression, then there's obviously a need to look smart. An ATCO at the CTC for training, I don't think people really care.
Please don't think that the majority of workers at the CTC think the same way as upper management. There's internal politics that has to be played to get anywhere, but that's another thread...
BTW, I'm not an engineer; I get paid much less.

Ho hum, better decide how I'm going to vote.