Stupidity and bad supervisors is something you will encounter everywhere, not just office jobs. If you haven't yet, then you probably haven't been working for very long.
My job can be like that at times, but we have a good IT manager and our bosses let him do his thing. Our last IT manager was some clueless douche with an MBA; he fucked up our shop time after time. Thank god he's gone.
Personally, I prefer to "work smarter rather than harder."(just an old saying, no offense to anyone) I see no reason to bust my ass in the sun all day when I can pay my bills by sitting in an air conditioned office all day. I like what I do though, and I couldn't see myself doing anythign else. Office politics can be annoying, but it's something you take with a grain of salt.
Haha, don't try to over analyze it man it's just a stupid slogan. It just means "join up and we'll give you work experience that will help you get a job easier and faster." Although military experience definitely isn't what it once was...