Re: Great Moment.
Did he? He says that he's going to fight to the very end, but then he essentially commits suicide. Don't forget that he and Power Ring knew of the existence of other universes, and they could have fled there just as Luthor sent his son there. Especially when you consider that Ultraman and Power Ring were the Monitor's first choices for whom to draft in the first round of the the Crisis. When they died, he had to go with Superman-2 and John Stewart instead. Maybe he just gave up.