"No part of the world" has nothing to do with the person being "of the world" before becoming a JW.
I get what you are asking, not so much about the person receiving needed benefits that he earned, but more about not even considering walking away from it and even being a bit proud of his service.
It's a tough juggling act, this cognitive dissonance. I am sure it has crossed many veterans' minds when they became JW's.
I am one of them. But I didn't get shot at or hurt in the military. I have no real benefits coming beyond the NOTHING DOWN mortgage and I would qualify for medical benefits if I didn't earn much money. All I can say is that were I still a believer, I would take what I deserved and be "quiet" about it to other JW's so as not to "stumble" them.