That's one way of looking at , on the other hand, when large industrialized nations are trying to kill you would you rather be among "sons of privilege", or poor country boys like Alvin York and Audie Murphy ?
OTOH, Patton didn't exactly come from a poor family. Neither did JFK, and they did allright.
The point is to get the privleged to serve, so they won't be so quick to either go to war, or hamper the military as they'll know what its like.
FQ13
PS I'd want to be as far away from Sgt. York as possible. That guy was just crazy. 100 of them, 2 of us, follow me! Uh.......