I agree, but it would be very questionable if both of them would do it. And I'm pretty sure their fans won't want them to do it either. You'll have a WW 3.
It's all about the money. Almost every player will take the most that they can get. This is why I find it absurd that fans will ask so and so player to take less money. It is absurd.
As much as I hate Lebron, this is the part that amazed me, taking less money for the team and ring.