Agreed, I think what a lot of people misunderstand is that bitcoin is a terribly inefficient way of achieving consensus. No one is going to build mining farms just to protect digital rights.

Bitcoin has a chance at becoming a currency because in the past it has been hard to reach a global consensus on value.

It may be possible to use a bitcoin based timestamping solution like https://github.com/goblin/chronobit to record the rights, but I can't see where the incentive is for everybody to support a distributed database of such rights.