Well, you say 'the only people who feel this way usually work for the NSA'? I disagree.
Everyone at the NSA is aware of their "First Commandment"; “Thou Shalt Not Eavesdrop on Americans Without a Court Warrant.” Something that went out the window during the Bush Administration under Gen. Hayden (former NSA directors have stated publically he broke the (FISA) law. One even flat out said he should have been court-marshialed). Snowden isn't the first to blow the whistle over at the NSA in the last few years, Thomas Drake being one I can think of off the top of my head and he was a senior official at the NSA! So I think the people at the NSA rtake their jobs seriously, their directors not so much. I'd lay blame where it's due I think.
Oh and what happened to Thomas Drake? Jailed! as were others (there were, what, like, 5 people from the NSA who have spoken out since around 2006? That's a lot!) I have to ask myself, if I were Snowden and watched senior officials being jailed for revealing the NSA is spying on everyone, would I skip town? You bet yer fat arse I would! I'd skip town, get all the docs to the newspapers, and make those rat bastards answer to the People!