Presumably the kind of people who are bound for Hell don't get to work for Uriel regardless of where they are on their journey to final judgement.
Though I don't think it's necessary for there to have been a suspicious of otherwise "wrong" death. Carmichael did, and Sir Stuart probably will, and their deaths seemed fairly straightforward as far as I know. Yeah, MacFinn probably was in the jail because of a course of action set in place by the FBI agents who were directed down that road by (most likely) agents of the Black Council, but Carmichael chose to be where he did and do what he did, it's at enough of a remove that I think it's just a general "good people who can do the work" thing.