I've been hearing that crap for so long and I don't buy it. Fisher is a media darling and I'm sure a nice guy to the people that know him, but he's not the leader that everyone says he is. Sure, he's really respected by everyone, but he's very arrogant. I have never once heard him take any blame for anything, but I have heard him many times take credit. Whenever he has a bad game, it's all about the team in post-game interviews.
I really don't think his propensity for inspiring speeches really make him a "leader". He's definitely not a leader on the court with his stupid decision making and inability to do anything but shoot 3's and hit free throws, and his poor shot selection ruins the shooting aspect.
I've heard a lot of things about Fisher, that he's intelligent, savy, humble, loyal, etc. and I've never witnessed any evidence of it. I think he's just one of those guys that if people say something about him enough, it becomes the truth, and everyone will remember the plays that validate their beliefs about him and overlook all the plays that invalidate their beliefs.
Fisher to me, is just another basketball player that has bought into his own hype and gotten a huge ego because of it.