Capitalism and Democracy

I came across an interesting article about the necessity of capitalism in a society to ensure freedom and peace.  Click here to read it.  It was written by a local Kansas City man, Carl J. Schramm, who is president and CEO of the Ewing Marion Kaufman foundation.  I am a pro free-market kind of guy, but I also don't want to rely on capitalism and coporations too much.  I would advocate a sort of responsible capitalism, whatever that might mean.  I suppose it means that the market is free up to a point where no one gets hurt or trampled on by big corporations; and I also suppose that would mean that it would limit how big and powerful, or influential corporations could get.  I don't know, what say all ya'll?