In a completely free competitive system, cheating becomes necessary to survive. This applies to almost any industry. In a weird way, you can't blame companies for cheating so much as the government for being too poorly structured/equipped to regulate effectively.

Cheating can take the form of: pollution, privacy violations, abuses of human behavior, exploitation of natural resources, corruption, etc. You'd be hard-pressed to think of a single F500 company that isn't benefiting from some form of cheating that is inadequately regulated at present.