1. A copyright owner can test this easily by offering a discount.

2. Because they are getting significantly bigger value out of it. Because they know ahead of time they want more of this type of content to be produced. Because they have more disposable funds. Because it is available in their country legally. Because their streaming package already includes it. Because their cable package already includes it... Need I continue?

Again, you are conflating is it OK not to pay with any loss of profit: they are not the same even if there is correlation.

Nobody loses any money if you spill profanities at someone, but it's still not OK (even though it might not be illegal either).

Legallity and morality are not always in sync even if we try to keep one reflect the other. I am surprised this is even a discussion point.