If someone wants to dress modestly because they think it looks nicer, they feel more comfortable that way, or whatever, then more power to them! However, if someone wants to dress reavealingly, they should also have that right without being criticised by others.
Personally, I would never wear overly revealing clothing to my job, or to an interview, or anything like that--its just not classy. If I'm out with my friends on a Friday night, however, the common dress code usually calls for something a little flashier, and I am usually happy to let loose and oblidge. I think there's a place and a time for everything, and sometimes its just fun to put on "men's shirts and short skirts" and have some fun!