Every profession has its ethos. To fit in, you must comply with those basic rules.
Just it would well be wearing a suit to participate in a track, or skirt and blouse for an Olympic swimming competition, it would also be to wear a jersey and Jean for a military match past.
But you see, there are times when nudity is the norm!
Have you been in a labour room where expectant mothers are under the watchful eyes of doctors as they close up to welcoming those adorable babies? No one cares about make ups, or designer wears in the labour ward. You can't even wear them there. The doctors won't allow you. You won't even remember or care you that you are naked or scantily covered.
But you see, that's one part. Another part is that except when otherwise stated, you cannot under-dress in a short and a singlet to a job interview.
So the simple rule is this: Know what the situation demands and live by that!
Thank you @ejemai