Asking people to act against their own interests voluntarily never works in the long term. It is safer to assume that businesses will act in self serving ways. Where we currently fall down is with legislators completely failing their mission of protecting the public. Your congressmen shouldn't be representing corporate interests, in a capitalist society their interests will always be well represented. The congressmen should be protecting the people who don't have the money to represent their own interests. That's one of the most important jobs of government in a capitalist economy--to prevent the wealth from accumulating entirely at the top as will otherwise naturally happen. When government fails at its job you end up with times like the Guided Age, which can typically only be corrected with massive social upheaval or devastating war.