I thought the same. Also, if he is so interested in getting Tav and the companions to get him the crown, it would make sense for him to have something each one of them desired as a way to tempt them to make a contract with him. The game doesn't portray Orpheus as someone that important to them as they already have the Emperor so why would they risk fighting against a Devil to free him? Yeah, there is the thing about turning into a Mind Flayer, but that could also be fixed as no one really likes that option.
