I wouldn't hold CIA and other intel agencies up as a bastion of virtue, and I appreciate they've done a lot of terrible things. I can't really make broader moral judgements about how they handle their respective missions, though, since they mostly operate in the dark. All I can say about the CIA, for example, is they're somewhere between A: the most oppressive, lawless, brutal institution to exist post WW2, and B: flawed saviors of humanity from nuclear/other apocalypse. Who really knows? Those that do probably can't say much.

Intel agencies do have the problem that if they go off the rails, there's not many paths to reform outside of direct involvement. I also strongly suspect that they're doing some terrible and unnecessary things to this day (e.g. still ruining lives in a protracted battle with Marx's ghost) and need reform, but that's really the strongest claim I can make.