Would Pay Changes make better fights?

Purse fight would make so much more sense. I know the Name is what makes draw. But Look at the DLH vs PBF.... If you said, the winner gets a 25 mil and the other gets the 10, they may work harder. I know pride and belts are important, but $$$$ is a driving force behind many efforts. Would you fight as hard for $10 or $100.... Give these guys an incentive, work harder, earn the PPV dollars! How many of these guys would would fight if you said if you lose, you get nothing, but if you win, you get $100 mil? It sure would show who is in it for the game or the Money! Greed....