I would be VERY surprised. Forget their persona's and what they look like when their hyping a fight, there's a big difference between guys like Mike Tyson and Antonio Tarver (i.e. guys that go bankrupt) compared to a guy like Floyd. And they really do seem very much into the whole "support the next generation of Mayweathers" thing... so I'm sure a lot of his money is going towards their future, already.
Floyd has kept his money this long, never looked like his pockets were hurting at any point. I think he knows how to keep money.