True; but WoT is black and white, literally, when defining good and evil. If you're not sworn to the DO, you're fine; regardless of any personal quirks or ambitions :)
That's interesting. And it reminds me of how Ba'alzamon/Ishmael used Tel'aran'rhiod in the early books to torment and try to break the 3 ta'veren. That was so good to read!
We don't have any insight on what crimes committed. Some of them may seem much worse that Ingtar's. We'll never know. He didn't want to become a darkfriend. My understanding and memory of his final words to Rand is that despair pushed him over the edge. It wasn't a drive for power; inherent...
Ingtar and the lady hiding in the spoiler tag are tops for me.
But there are others worthy of some mention :)
Forsaken: Asmodean
Funniest:
Most Competent: Alviarin
Almost Redeemed: