But they all explicitly forbid me from using the work I commissioned for commercial purposes
I fear the courts will side with the tech companies on this as regardless of how illegal or immoral a certain act is, if you do it on a large enough scale it becomes "okay" again in the eyes of the system. Genocide, large scale fraud, negligent financial actions, pollution/poisoning, etc. You dump toxic chemicals into one person's cup and you get the book thrown at you. You dump toxic chemicals into an entire city's water supply and you pay a paltry fine that is never enough to seriously damage the company because that's bad for the economy.
Because most people pirating are doing it for their own personal entertainment while these companies are doing it to build a commercial product for sale. Pirates that sell access to their collections get a lot of negative attention, even from other people who pirate like me.