Are small government advocates anti-democracy?

In a contemporary democracy the government represents the people and acts in their interests (at least theoretically), while corporations invariably act in their own interests as institutions and in nearly every instance at the expensive of working people and the tax payer (doented fact). Small govt pushes want corporations, which are internally dictatorships, to own and therefore control literally everything, and govt to exist merely service corporations and nothing more. Thus small govt has no power to exercise the will of the people. How is this corporate plutocracy comparable with democracy?