Well, You can hold more authority even if you don't have a separate designation. King's introduction is literally him scolding Jack, a fellow All-Start, for his failures and instructing him about their new business deals. He also berated Queen, although he didn't seem to care. I don't see why he'd middle with their business, when they have equal authority, if it doesn't concern him.
Also, It makes no sense to call King the strongest All-Star when it says he is next to only Kaido strength in the very next line.
Also, It makes no sense to call King the strongest All-Star when it says he is next to only Kaido strength in the very next line.
The all stars are a singular rank and there’s no authority within it. Otherwise Kaido wouldn’t have let the Tobi Roppo challenge king for a spot if he had a special rank