All videos are commercials for their brand. But unlike traditional sports they're also the primary form of proof of performance.
It's the commercial AND the "big game" for these guys. A good video part can get these guys a Salary in addition to portions of profit from product sales. A bad part or lack of one can get you kicked.
Aside from that though, every purchase of product counts. Especially at a time where there's a growing pattern of buying "blank" products because they're cheaper in price.
/steps off my soapbox.
Don't mind the rantings of a crazy guy who used to work in the industry.