I was trying to say that the reason we have this paradox of "pirated bytes" that simultaneously causes losses and doesn't cause losses is that we try to impose rules of the material world onto the world of ideas.

I'd argue that software isn't built, but discovered and selling the same knowledge of how to sail the discovered island is a challenge, as we know. SaaS is essentially hiding that knowledge and selling bits of derived knowledge specific to each customer. SaaS doesn't attempt to sell the same knowledge twice. Otoh, the movies and music industry hasn't figured out this derived knowledge trick, so it struggles.