What was the logic behind Sony banning the purchase of games?, was Sony compelled by U.S law?. Was this done as a way to try and try to win brownie points and free pr from those reporting on it?.

I can understand valve enforcing the discounted price difference among countries but I don't like the idea of not being able to purchase a game at full price and play it because a company wants to virtue signal. All valve has is its reputation, bad move for them to shake people's confidence in their game collection.