Because they're private corporations and these models are their private property, indeed they are a type of capital like a bottling machine or a loom.

This isn't so much about moralizing as much as it is businesses deciding what to do to make the most money. That doesn't mean you can't disagree with it, far from it. But I think the framing of, "these companies are imposing their morality on me" is a misdiagnosis. I don't think it's really a moral position for them, it's a product engineering position.

I would describe the situation as, "more and more of the world is controlled by large corporations, and I'm increasingly subject to their arbitrary and unaccountable decisions. Many of which make no sense from my vantage point."

They are proving that the present techniques being used to control their models can be reliably bypassed. Regardless of what you want your model to be able to do, there may be things that you don't want it to do. For instance, if you are making a product for children you'd probably want it to avoid certain content.

If you are training you own model, it would be nice to know what, if any, techniques you could employ to balance the effectiveness of it with generality.