The Redeemer: That’s the (translated) title of the Jo Nesbø book I just finished, in the Harry Hole series set in Oslo, Norway.
Near the end of the book is this:
“It’s chance and nuances that separate the hero from the villain. That’s how it’s always been. Righteousness is the virtue of the lazy and the visionless. Without lawbreakers and disobedience, we would still have been living in a feudal society. I lost, Harry; it’s as simple as that. I believed in something, but I was blinded, and by the time I regained my sight I had been corrupted. It happens all the time. “
And before that:
“Imagine you are at the heart of what you think is justice and then suddenly lose all sense of direction and become the very thing you oppose.”