That is called being selfish, do you not agree that if they both put their egos aside they can pull this off?Cleary Sasuke has issues with it, along with trust. He wants to do things on his own, his way what he perceives to be the right way. That's just how it is. He isn't going to ask for help when he believes himself to be fully capable of doing it and others inept at doing so.
They both stated they wanted to be Hokage, that is just basically a title.its the dream of other saviour to become hokage of leaf aka a kage dat created the current system