Why do they play?
The NFL is a job. It’s reasonable that they play for several reasons, including getting as much wealth as possible.
For many college athletes, playing is also a means to an end, and that’s been true for a long time
The amount Dak gets isn’t an issue. It’s what you get in return that makes it suboptimal to the fan’s hopes, which don’t really matter anyway
The Cowboys goal is to make money. Winning generally helps in that, but Jerry is a master of keeping Dallas as a draw and helping the league make money regardless. The league, and thus the Cowboys, will make money even if Dallas spends too much on its QB