You're describing regulatory capture, which is true in unregulated capitalism. When I say "unregulated capitalism", I'm not talking about business regulation---I'm talking about regulating capital itself. In a healthy, regulated capitalist system, the political influence of individual companies is diluted and there is greater competition. Business regulation is always needed to ensure things like public safety, contract enforcement, and fair competition. But when disproportionately large players politically capture the regulatory machinery, they tilt the regulatory playing field towards themselves. This is a symptom, it is not the disease.