Immodesty

There is a young woman in my workplace who wears thong underwear beneath pants made with thin fabric, and a bra of the type which lets the nipples be easily seen beneath a flimsy T-shirt. Why do women want to dress that way? She looks practically half-naked. Perhaps more to the point, why does the workplace allow her to do so?
As to the latter, the answer is non-judgementalism. No one wants to take a stand, that is assuming anyone finds it wrong to begin with.
Personally, I find it a brazen piece of rudeness to have to be subjected to that everyday, and to have my workplace and profession degraded. She dresses like it's Spring Break and they are filming Girls Gone Wild.
Everywhere you see it these days: girls dressed like sluts. Are there any young women these days who want to look modest? Modesty is so much more becoming to a woman, but I suppose these girls' parents never told them that; the parents in question did what all parents seem to do these days: they let their kids be raised by the boob tube.