As well as penalties diminishes as size grows. A small company might go bankrupt by a medium to large lawsuit or a large fine, while a large company can easily weather it off.

If a small to medium company invests heavily in something illegal and they are forced to stop with all the lost revenue that follows it would be devastating. For a large company, not so much. They can afford to fight a legal battle that delays when they should stop, in the meantime their illegal activity might have already yielded success.