If the fake Rolex was a bit-for-bit, atom-for-atom copy of the original, then it would have the same value as a real Rolex. At that point, there would be no difference that would matter in the slightest.

If what I get by right-clicking is the same as what you get by purchasing an NFT, then there's no difference that matters. Well, there's one difference: I got this image for free and you paid for it.