You’re insulting the memory of Benedict Arnold by comparing him to Fredo.
I guess I’m using B. Arnold as more of a generic personification of personal ambition over moral values and apparent selfless causes. I guess to that extent it’s a good comparison. B.A. came to mind because I just read about him and saw his depiction last night on “Legends and Lies.” Sort of rings a bell. Don’t know of better comparative character that rings the same kind of bell, but if there is one, please share it.