There was a reason why the Floyd vs Conor fight could attract so much revenue ($600 million). Floyd was at his peak, and at that time Conor was also getting hyped in the MMA market. But the revenue distribution shows who is the boss. Floyd ended up with a paycheck of $275 million, while Conor received $100 million. So Floyd is right there. Neither Manny, not Conor can match his revenue generation power.
Floyd seem right, he is really popular, and anytime he fight he makes big money, we can't deny that.
In fact, Manny would not make the biggest payday of his career as a boxer if Floyd does not fight him, same goes with Floyd but this guy has been making big money already before he fought Manny. His name was even change from Pretty Floyd to "Money", because he literally makes money.