> I'm saying it doesn't make sense that the authors and the publishers don't get any money after the book was bought once and then it can be borrowed an infinite number of times.
Why not? That's how everything else works, at least in the US. e.g. my local hardware store will rent to you a variety of tools (which they also sell) or even trucks. They don't need to compensate the manufacturer for each rental; they just buy it like anyone else would. Even Netflix got their start buying DVDs and mailing them to customers to rent. As far as I know they have no requirement to pay ongoing fees or establish a licensing deal to do that (and apparently they have better selection for dvd rentals because of that).