I think people are just trying to get the full picture. Without physically being there it's hard to give good advice or pass judgement. We have no idea what your operation is like and how much experience you have with cattle. It seems like someone may have taken advantage of you on the angus bull but we can't know without the full picture. Maybe you got it super cheap. Even a bull calf out of a $100k sire needs to be steered sometimes genetics are weird. Just because it was AI doesn't mean it's worthy of passing on its genes itself.
@Travlr made some really good points as well as others. Like he he said if your goal is to just get a calf on the ground and that bull has a good sperm count he will get you a live calf. It may not bring very good money if you go to the sale barn or might be lower quality to butcher if your direct selling the meat.