What? So if I hire you and don't pay you, you can go back in time, thus not losing the hours of effort you will never get back? I strongly doubt this, but assuming it is true: why haven't you just invested in the stock market and made trillions of dollars yet?
With your creative people, they never had a contract in place. I was never going to buy their music, game, book or whatever. I don't owe them anything. If they want to speculate on me giving them some money for the work they do, they can, but that doesn't guarantee crap. Further, if I copy say, a song: I have the song, they have the song, i paid the same as i would have paid anyway ($0). Somehow you are saying that the band lost money tho? If the pope declares the music satanic, and threatens listeners with excommunication, do you sue the Catholic Church for lost sales?
If I show up at your house and mow your lawn in speculation that you will pay me for that service, but you choose not to do that, do I get to sue you for theft now? Because it sure sounds like that is what you are saying.