Where did you get that idea. Global economy is ~200T/year PPP. 0.1% of that split across every artist you want the training data from would be insanely difficult for the vast majority of them to turn down. Which makes sense as art isn’t that big a percentage of the global economy compared to say housing, food, medical care, infrastructure, military spending etc.
Obviously the incentive to take without compensation is far more appealing, but that doesn’t mean it was impossible to make a reasonable offer.
That's kind of an interesting concept: "since the scale of my transgression was so big, I should get away with it scot-free."