How many people are actually informed that the Washington Post is owned by Jeff Bezos? How many people know that Jeff Bezos has contracts with the CIA[1] & sits on a pentagon board[2]? I doubt many. It's one of the few "left" wing newspapers I refuse to read for the reasons above.
I'm not arguing for this blockchain solution, I think it makes things worse exactly as you said.
[1]https://www.theatlantic.com/technology/archive/2014/07/the-d...
[2] http://www.businessinsider.com/amazon-ceo-jeff-bezos-joins-p...