That is the positive side of monopoly; the UFC concentrates the immense majority of the global MMA talent, so they get to put the fights they and the fans want without different promotions having to protect their own brand-champions, making negotiations interminable and impossible.
It also means that the organization is not based exclusively, like so many belts in boxing, around having 1-2 superstars to sell pay-per-views, but a consistently mobile system of divisions that can generate interest in up and comers and not only contenders and champions.
Since their brand carries hundreds of fighters that need to fight, they need to put out many, many events and cards. They care for there to be a much higher recognizability rate for non-champions than in boxing. Someone like Cerrone, Chito, Masvidal, Dustin, Justin are known by basically everyone in the community, even if they have pretty inconsistent records and have not been champions.