I stopped dressing to "impress" after about 4 years in my field. The amount of crap I've fixed that was done by more tenured/"experienced" people is too much to count.

At this point, I'm wearing what's comfortable. If you don't like it, too bad. I'm here because you need me, not because I want to be.

I'm still paid fairly paltry amounts, so I dunno if I'm the "highest paid" person. Management certainly doesn't listen to me, but they keep signing the cheques. If you want to pay me to tell you about problems so you know about what you're refusing to do anything about, I'm okay with that. Your company, your decision.