[Roboprog]

So what's needed is some kind of reform, perhaps ultimately leading to a sort of "Magna Carta" limiting corporate power over the US government.

Perhaps a first step would be working to get instant runoff voting in place to break the back of the two party system. That would go a long ways to offer more than a difference in noise about narrow social issues (e.g. - abortion, gay rights) which actually have little to no impact on broader economic issues or privacy issues regarding freedom from blackmail or other persecution.