It would be wise for fighters to listen when he mentioned how he negotiated with the UFC. The key is that GSP understood that the relationship with the UFC was always going to be combative when it came to pay, so he took a strategic approach. People have roasted the DIaz brother's for how they tried to get the UFC to play ball, but I think if you listen to what Georges is telling fighters. Georges even mentions the insanity of an 8 fight contract, but that is exactly when the UFC got Nate to sign to get his title shot against Benson Henderson.
Then instead of embracing Nate when he later become a major draw, they tried to hold him to those same numbers (I believe $60k show / $60k win). Sure, they had the legal right, but they blew an opportunity to have another major draw, as by this point Nate understood he had been screwed and wasn't going to be pimped out for peanuts.