People against Capitalism often say that a lack of Government regulation results in monopolies and Corporatism, where greed is put before people when they have the freedom to intoxicate teenagers with cigarettes through mass advertising, or dump toxic and cause lots of environmental damage or health problems.
Corporatism is also the ruling power when Government isn't, because they have politicians by the balls through lobbying anyway.
Corporatism in both senses of the word is opposed by libertarians. In the sense of interest groups bargaining policy with the state, libertarianism opposes it. In the sense of power for business corporations, libertarianism opposes it. In fact, the corporate model is created by the state through taxes, intellectual property (better called intellectual monopoly), limited liability, personhood, subsidies, regulations and zoning laws.