If you're looking for some companies to feel good about, check out UNIS and Baron Wells. And have a look at this blog: http://well-spent.com/
Rag&Bone does make a lot of stuff in China and other countries now, and you'll notice that's reflected in the price and the tags inside the garment. A lot of their pieces now have a tag that just says "Tailored workwear" (as opposed to the "Handmade in New York" tag that you used to see more frequently on their stuff) and from what I can tell those tend to be made in China or other developing nations. The price is also lower on those pieces. Their Chinese-made, "Tailored workwear" denim, for instance, is generally $195, while the denim that still has "Handmade in New York" on the interior waistband is generally $295. I think R&B does still make some great stuff, but you have to check the label.
Incidentally, I think it's funny that Levi's, the quintessential American brand, was recently listed among companies caught manufacturing their garments in third-world sweatshops. In a way, that's as American as apple pie (which is originally German).