Libertarians do not believe companies will "self-regulate out of the goodness of their hearts." That's a myth. Companies will do what they have to do to maintain market share and make a profit. This means they won't, as many poorly drawn memes suggest, deliberately poison their customers to save money. If they did that, their customers would die. What they will do is lobby the government and capture the regulators. That's why sugar is heavily tariffed and corn syrup is subsidized. That's why low fat diets were promoted by the government while sugar and twenty loaves of bread a day was deemed essential. That's why, when employees unite to negotiate for better wages or working conditions, companies have summoned the government to kill the strikers. Almost everything you hate about how corporations do business is a direct result of government action and regulatory capture. We also don't argue that things will be a perfect magical utopia if these regulations are removed. Perfect magical utopias don't exist. Not even if the government tries to regulate them into existence. We argue, instead, that eight billion people each making individual decisions about what they will buy and what they will sell , and the conditions under which they will do so, is better than a single top-down system imposed from above by bureaucrats who, inevitably, fall under the control of the biggest, wealthiest corporations. The role of government should be limited to protecting your rights to life, liberty, property, and pursuit of happiness - not restricting the choices you make that don't hurt other people.