If anything, I find the NSA kerfuffle oddly reassuring. First, because a whistle-blower was able to look at an aggregate picture and view spying on ordinary citizens as wrong. After all, there were hundreds of FBI agents spying on individual people for decades and they never suffered any apparent guilt or moral qualms, or, if they did, they kept those doubts to themselves. A number of agents did admit long after the fact that they weren't happy about Hoover's anti-Communist obsessions and where it led the agency, but they followed orders anyway.
Second, the sheer size of the spying operations means the spy agencies are burying themselves in