"Face Jobs" For White People
Just like Americans always need to find an Asian (any Asian) when they need a kung fu sidekick or villain for some hero, Chinese people need to find a white guy when they want to show off how big they are in business.
It works like this - China doesn't actually want any foreign firms to come in and own anything in China, or plant their own companies, but they do very much want to deal with foreign firms and bring in their money. So a successful Chinese business is one where a parade of assorted white guys in nice suits is constantly passing in and out of their offices.
But it's a lot of work to drum up that much foreign business when you pour lead and melamine into all your products. It's a lot cheaper to rent white dudes and tote them around at your conferences, ribbon-cutting ceremonies, press conferences, etc.
"Hey, that guy looks like a CTO!"