They just refuse to license their intellectual property to streaming companies that haven't developed "adequate" protection against "piracy". It's all about making a billion dollar investment look less risky in the eyes of executives. I seriously doubt it's helping them make more money.

Any victory against copyright infringement will come from competing directly against it. The copyright holders are too busy competing with each other and fragmenting the market instead of building something that's actually equal to or better than "piracy". It's pretty sad how a bunch of "pirates" manage to provide a better product than corporations valued at tens of billions of dollars.