"Sounds like the NSA who couldn't point to a single instance of stopping any type of terrorist attack/operation despite collecting anything they could get their hands on."
This is kind of a misrepresentation of the situation.
Manning leaked mostly diplomatic cables, the contents of which he was unaware of, thereby harming his whistleblower credentials.
The contents were not what we would regard as 'intelligence information' - more aptly described as 'the e-mails of the US diplomatic foreign corps', some of which contained sensitive information'.
That gigabyte of private information was released and there wasn't a single scandal of it shows how tight the operation was, moreover any reading of the cables demonstrates how well the US diplomatic corps were actually doing their jobs.
Far from releasing damning information about Americans, the cables released inside information about Arab leaders and their systematic corruption.
To unearth that amount of private information, to have it combed over by thousands of journalists trying to find a juicy bit, and to come up with very little ... is frankly something Americans can be proud of.
It's ridiculously ironic that Manning, in his attempt to discredit America, ended up doing what US diplomats were unable to do within the constraints of their jobs, which is to speak truth to power about the corruption in the Middle East - which ignited the Arab Spring.
The real world is sausage making and grinding, any skeptical, decontextualized look under any rocks will always yield something to talk about - so in the end, it's really the details and context that really do matter.
The cables did truly pose a serious threat to the security and integrity of individuals in various ways, and obviously it compromised many programs. That there doesn't seem to be any deadly outcomes is wonderful, but it doesn't abnegate Manning from the inappropriate actions he took particularly on the cable leak.
What's far more interesting about this case, is the fact that the press used to be in love with Assange, and now they hate him. I wonder what caused them to turn. Obviously, his close ties to Russia are problematic, but it's hard to see exactly what it is. It's possible that he's just not contemporarily a social advocate in their view: we're now full-on into intersectional issues, matters of state etc. are 'old news' it would seem.