Why are people obsessing over the fact that he doesn't have the same qualities as Shatner's Kirk? It's not the same character. The death of his father altered the timeline, and new Kirk grew up to be a different person. Ultimately, he ended up in the same position of authority, but that does not make him the same person.
And yes, I do think he'll make a good leader. I saw him in a small film called Carriers that was released shortly after Star Trek, and he had to make several very difficult decisions along the way, and his acting sold me on it every single time.