OP, I'm not being dense. Just taking some of your arguments at face value. Use a different phrasing if you mean something different than how I interpreted it.
You seem to think there are a lot of billionaires in the book publishing chain. How about all the shareholders of symbol AMZN? Think they are not entitled to see a return on their investment? You don't have to be ultra-rich to be invested these days. For $7 at Scottrade you too can root for AMZN to rake in more profits.
Libraries do pay for their books. We do pay taxes. Free? Not hardly. If they stocked enough books to satisfy all public need, such that we never bought our own books, content providers would get a nice chunk of coin from that.
In the end, capitalism means you don't get to decide who gets the biggest slice of a transaction. You seem to be arguing for more money going to authors. <Picard voice on> "Make it so!"
I happen to share some of your concerns about monopolies and how Amazon represents one in the making. I'm just not willing to set fire to 'the establishment' to make changes.