I think I understand your point. Trying to compare a persons influence in government, a system designed to encourage citizen participation, to that of a corporation, a system designed to make as much money as possible and answer to share holders, is not great.

"In order to form a more perfect union" VS "the pursuit of shareholder wealth."

Even if the system is not working exactly the way we want - it never will - we are still endowed with the rights to participate. The same cannot be said for corporations.