That is the proposal of some anarchism (you got it!): do things freely for the others. There are numerous instances of publications under copyleft that are successful, and in general much of the entertainment industry was moving in that direction;
There are professions that are currently in the past time, society advances technologically and no turning back.
Authorship has been out of context thanks to digital technology ... it is as if we pretend that the scribes of the Middle Ages had continued working after invension of printing.
Anyone making a digital copy of the books Lorenzi could climb to the eDonkey network eMule or aMule or any other open networks like the torrent, etc., and there would be no technical way to stop that.
So what it is, is to be creative and see how we get the money while we do not put a spoke in the wheel of progress that can be good for the world and nature.
I would buy the Lorenzi's books if the library in my town would sell them, for sure, and I would like to have a digital copy of them to show to some friends or familiars, etc.