To be honest, these companies already stole terabytes of data and don't even disclose their dataset, so you have to assume they'll steal and train at anything you throw at them
You don't have to assume people are going to be bad, but it's reasonable and prudent to expect it from people who have already shown themselves to be so (in this context).
I trust people until they give me cause to do otherwise.
No, nbulka is correct. People should not shrug off and accept things that are wrong just because it's to be expected. It's one of the worst things you can do because as already pointed out, it just normalizes wrong.