A deep analysis in the Brazilian health care system shows how Government depends from private companies. State has the Constitutional duty to implement and develop the health care system, but its goal only is possible if Interact with the private sector. In this way, there are three ways for success: increase tax incentives, adopt an information economics and recognize health as a scarce resource. In fact, nowadays, private sector are assuming a duty without a public incentive policy, and it may impact in the sustainability of all health care system, as for private as for Government.