Since he felt like Max had tricked him and prevented him from getting close to Ash who could prove useful to him in the future, he did not feel like Max had done enough to pay him off.
He already had in mind some things that he would have Max do so that he could be properly repaid.
It was made even more like that when he continued to watch the fight with Ash who was fighting against her opponent.
Even he could see that Ash had some potential.
She may not have been a popular fighter that could entertain a crowd but she had the potential to rise in a more stable manner than others.
If he could see it then others would be able to see it too.
Ash was the type of fighter who was more careful in fights and not as reckless as most others.