Probably he had to have an affair with that woman to give the CCP some leverage over him. Powerful financial entities nowadays won't allow you to have any opportunities unless they have have leverage over you.
Maybe he had to do it in order to be allowed to make sales in China.
I think I may have lost some big opportunities myself when I was in crypto because I was faithful to my wife. Powerful people need people who they can control. They need kompromat.