For pseudo-gov read "multinational". As far as data goes, I cant think of a principle more well-evidenced. A single person who is not a consumer of a corporation has no influence whatsoever over the decision making of that corporation.

I can go to my local representative and act in my local community (petition, etc.) in which my local representative has a stake and he can do things for me.

The tremendous amount of public shaming the government goes through (compared to private corps) should be evidence enough that there's a considerable amount of public accountability.