Firstly, to be clear, the Rock's first movie was produced by the WWE while he was under contract to them. No doubt he was paid for the film, but he now makes them on his own, without the WWE's backing. WWE also produced The Marine with John Cena, and See No Evil with Kane. This isn't really relevant though.
Whether or not you make a million, or 10 dollars an hour is not relevant to whether or not you have been screwed. Imagine if your government came to your nice house, took all your possessions but left you with enough to eat. Would you like it if they said..."You think you have it bad..In Africa, they don't even have food!"
No one was talking about being screwed out of money, the issue was whether or not an employer screwed over an employee after they had reached an agreement.
Vince could have told Bret that he wasn't going to let him wrestle, since he refused to lose on Vince's terms, and he could have then sued Bret for breach of contract.
Likewise, Bret could have lost the match Vince's way, but forced Vince to pay him his salary and keep him in the WWE, as stipulated in his new contract. But Bret did not take Vince to court, asking instead that he go out on his terms. The two had an off the books understanding. Then Vince broke that promise. Triple H made no mention of this broken promise.
To reiterate...the double cross against Bret was not part of the wrestling "story". It was a real case of an employer backstabbing his employee. That should not be overlooked just because "showbiz" is often harsh. Boxing is harsh too, but sucker punching your opponent after a match is not part of boxing. Vince lied to, and betrayed, Bret, outside the realm of wrestling, even though the betrayal was publicly displayed in the ring.
Also, this whole wrestling topic, as many of you must realize, is an argument by proxy of sorts, relating to the McMahons of bodybuilding.