You state this as a fact, but it's actually much less certain wherever it's ever been net-positive.
It was probably intended that way, but the reality is that the power has been with the publisher since the beginning, and they've absolutly been screwing over the author's as well. Only the most successful author's have gotten decent deals.
I don't have an answer to this either though, i just wanted to point out that copyright has arguably never been successful at getting money to the content creators proportional to the value the Publisher extracted from the work either.
It was probably intended that way, but the reality is that the power has been with the publisher since the beginning, and they've absolutly been screwing over the author's as well. Only the most successful author's have gotten decent deals.
I don't have an answer to this either though, i just wanted to point out that copyright has arguably never been successful at getting money to the content creators proportional to the value the Publisher extracted from the work either.