In my opinion, it's all about the mindset/attitude. There's obviously nothing wrong with not making a career out of the military but still taking the time to serve your country. What I see a problem with is people who use the military only as a stepping stone to something else. It comes down to being there to serve vs. being there to be served (and the vast majority of people I've come across are unquestionably there for the former).
That's my $0.01 (I'm just a dumb ensign, I don't think my opinions warrant 2 cents yet...even .01 is probably pushing it, but given how weak the dollar is right now, I'll roll with it).