> It’s like “Beef chili” vs “Chili with beef”. The average consumer wouldn’t know the difference.

Idk, but where I lived before, at some point virtually everyone knew the difference between e.g. "cheese" and "cheese[-like] product", because it quite mattered - one is real cheese made with real milk, another is typically a plant-based substitute with quite different properties (and typically of much worse quality).

Average consumers aren't exactly dumb (at least, not at the individual level) when things actually matter to them. They're just uninformed and don't actively express the desire to learn (so they remain uninformed), so they can act not in their best interest because they aren't aware about something. But when we know, when the information gap closes - we act differently, and that's not going back. Education is important.

So it may impact licensing of digital media where user intent was specifically focused on indefinite access. E.g. movie or music sales when people had incorrectly assumed that "buying" means they can rewatch/relisten it whenever they like, no matter what (and then their "purchased" content disappears because licensing deal wasn't renewed or something).

I see "Buy now" on Amazon kindle book product pages.

Your point is true, though. It's not all that common to use those words. I thought at least the checkout page would, but I'm seeing "Place your order", which is pretty apt for both purchasing and licensing.