Honestly one of the reasons I'd never get an Xbox One is because of the RGB issue, it'd bother me to no end.
The Asus VE228H monitor I currently have goes up to 80 contrast without crushing whites. Most Dell monitors I've played with go up to 75 contrast. An LG HDTV I once used could go all the way up to 100 contrast without crushing white.
My personal opinion with contrast is to bump it up as high as possible without
crushing the whites (or the colors), then drop the backlight so that you don't destroy your eyes. Do it right, and you'll get a comfortable white with a nice dark black, with zero crush.
The main risk is that the colors might be wrong, but colors are always wrong if you don't have a professional calibrator so w/e. If in doubt, just drop the color(s) a bit.