#4 It elevates the US Title
Say what you want about Baron Corbin, I think he's greatly improved and is on his way to becoming a potential top guy in the company, but he's not quite there yet, and he's certainly made no indication that he's going to raise the prestige of the United States title in the same way that AJ Styles did.
However, a wrestler like Dolph Ziggler, who is a veteran within the WWE now, can carry the United States title and raise it's stock, in a similar way to John Cena's 'open challenge' run and The Miz's memorable Intercontinental Title run.
Edited by anirudh.b