This is funny isn’t it. It’s as if the notion that one thing an Ultimate is heavily invested in isn’t their only shtick. It’s a logic that’s heavily denoted to be wrong, as Tsumugi does turn out to be involved with the game. See also: Kirumi as the Ultimate Maid, having the kind of abilities and smarts that mark her as powerful enough to become a shadow Prime Minister. Not to mention she displays some superhuman feats ingame and in her FTE.

Now we have Ouma, who displays a variety of unusual and advanced skills, knowledge of Monokuma, knowledge of the game, and bears a strange Ultimate title that Monokuma is decidedly vague about. Yet he does pranks as part of his group, so we’re just supposed to accept the idea that ‘because he’s not a Remnant of Despair, that means he’s not capable of anything else beyond pranks and there’s nothing else of relevance, welp, nothing to see here’?

Does this mean he is an Ultimate Supreme Leader? No, absolutely not, in the same way that Mukuro wasn’t actually the Ultimate Gyaru/Fashionista. But all the same, there is something exceptionally weird going on with this title, and Monokuma is evidently holding back from explaining what it’s all about.