Well, read all Mr. A's blather aloud, and tell me how long it takes you to say. Then ask yourself if there would have been time to pull Angel off the flagpole, knock him out, and still get her to safety.
He doesn't want to save him, but he's perfectly happy to tell us all that at length before getting her to safety. It's not an issue of time as he says. So, yes, that's not just, that's sadism.