Yeah but come on, the decision-making is not "public". The average shareholder, if he even holds shares directly, really has no way to seriously influence corporate strategy other than to sell the stock. In any case, the whole premise of a democracy is that citizens are able to have equal or near-equal influence. That's why we have one person, one vote. In shareholder capitalism, the more you own, the more votes you have. Those two principles are directly in opposition, making the suggestion that it's a tossup whether corporate or government decisions are equally influenced by public interest categorically false.