It is not the entirety of how it works but determining the primary intended use case of a technology is part of how it works.
with scanner and printer i printed material for my school colleagues in the german version of highschool, because they could not afford some of the specialized books.
i do not say, piracy is always okay, but the intended use is VERY MUCH open to debate, depending on the view point and the money.
and even more volatile, if much money can influence the societal debate and the law system.
many people are very much we-trust-authority-and-companies-to-do-nothing-wrong.
Sure, but primary intent is open to interpretation too.
Dig down deep enough and you'll find the very core of computers is about making copies. Colloquially we speak about moving data across memory or transferring it over a network swap a buffer to disk, but that's not what happens. We make copies and often, but not always, abandon the original.
So it's always been kind of hair splitting to discern between different kinds of copying. Piracy and fair use, owning a software vs having a license to use it - it's a gray area.