The issue you have is Pogba is not a leader. That's not a criticism of him by the way.
He is supremely talented and an absolute enigma. He is an 'icing on the cake' sort of players which is why he has done so well with Juventus and France in the past - because he has been surrounded by World Class players. He may demonstrate leadership by making a rousing speech from time to time as we saw in the World Cup, but he doesn't lead by example on a day to day basis.
I think the issue is that Pogba came to United at a time where a lot of leaders within the dressing room had left or were about to leave. All of United's home-grown players, plus some of the other players such as Martial and Lukaku, look up to him as their leader. This is evident from various social media videos etc. But his unique style won't translate very well if others take him as an example to follow. There's the added issue that because he was a youth player at United, he probably knows more people at the club than a lot of the other players, so there is a reluctance to try and challenge Pogba's assumed leadership from outside of this group. Therefore previous leaders within the dressing room have been sidelined (Valencia etc.).
I don't think he's as disruptive as the media makes him out to be, but I don't think his laid-back, fun, happy-go-lucky personality is what is needed as a central leader in the dressing room at the moment, with so many younger, impressionable players looking up to that example.