If you're in public denial about the FBI not being the righteous force for "peace, justice & the american way (whatever the heck that is)", despite the copious publically available evidence & reporting (by independent journalists) to the contrary, then ... no, you really don't want to know.

(all this, over what was mostly a tongue in cheek response anyway ...)

I think neither "righteous" nor "evil" are appropriate words in this context. It's a real-world institution with the expected biases, missteps of authority, episodes of getting embroiled in political machination, etc. Demonizing it is just as naive as idealizing it. And there's probably much more of the former than the latter today, when a lot of unearned, easy cynicism is either unconsciously performative, or even worse, the outcome of a caricatural conspirative worldview.