Yes, by having credibility in all of their titles, contenders, and contenders-running-up statuses, they can make the mega-star the UFC brand.
Contender matches for 155 lb + mens divsions used to sell like 500,000 + PPVs no matter who was fighting when that was the case.
In 2017, no one watched Ferguson vs Lee because, even though it was for an interim title, no one actually 100% believes that the winner is going to get a title shot. The faith in the divisions is questionable and so the UFC product alone doesn't sell.