While the historical accuracy of the "Robber Baron" age has come into question in recent years, the stories and tales from the Age of Industry remind us that the rich and powerful will always attempt to monopolize and control. Radical innovations and social change make it much easier to do, because contemporary legal systems do not inherently address the new business environment. Apple knows this. Hollywood knows this, Google and Amazon knows this: Content is king in the digital age. Like the robber barons of old, these organizations know that if they can change ownership models for digital content they can monopolize and control the future through content. Hollywood in particular, hates fair use and first sale- except when they make money off it... but they hate the fact that they lose revenue every time an item circulates in a library.
Enter the agency sales model, where the vendor is simply a pass through conduit for the publisher/producer to "sell" directly to consumers. The reason they all want agency sales is that it allows them to monopolize content. Which is why Apple doesn't want to share app sales revenue with the largest mobile phone network in the world- even though that is exactly how they have built the app store! Agency sales seem to be a backdoor to a new type of monopoly: the content monopoly.
It remains to be seen if we will have monopoly busters step up in this new era of robber barons. Politicians seem to be more interested in their money as the Obama documentary/movie/extended campaign suggest. Oh yeah, did I mention that Chris Dodd is now the MPAA head lobbyist?