Tell it to Randy Weaver. No, corporations answer to shareholders. No, it just has to buy off a plurality of special interests. The majority of Americans are now owners of capital stock. Corporate profits do not come at the expense of anyone, from new corporate productivity.
Government is a monopoly, pal.
Tell it to the Jews at Treblinka. If you are a Free-Market. Some firms sell customer information, others do not. You have a choice of which to patronize. The government uses your information without your consent, and you have no choice in the matter.