It was always from the very beginning a way to protect profits, that was the primary intent of copyright law, to give the creator of a work the exclusive right to make the money from the work before others are allowed to take the content and sell it for their own profit. Yes the length has become crazy long, and yes the law limits free (as in beer) access to information, but that hasn’t changed the reason for it’s being at all. It’s not really a “concession” either, more like it was intentionally balanced to provide enough time for people to make profits (which is what economically encourages creative work), while being short enough to allow works to reach the public over time.
It was always from the very beginning a way to protect profits, that was the primary intent of copyright law, to give the creator of a work the exclusive right to make the money from the work before others are allowed to take the content and sell it for their own profit. Yes the length has become crazy long, and yes the law limits free (as in beer) access to information, but that hasn’t changed the reason for it’s being at all. It’s not really a “concession” either, more like it was intentionally balanced to provide enough time for people to make profits (which is what economically encourages creative work), while being short enough to allow works to reach the public over time.