Why is this logically wrong? I think it's a given that people/corporations follow economic incentives. We even have a legally binding phrase for that to protect

Why is this logically wrong? I think it's a given that people/corporations follow economic incentives. We even have a legally binding phrase for that to protect shareholders. No one is making explicit accusations, just pointing out that privatizing certain industries (prisons, military, etc) can lead to perverse incentives.