Final answer:
The concept illustrated in the scenario is the principle of access to medical facilities, where a physician in an emergency room is obligated to treat all patients who come in regardless of their ability to pay.
Step-by-step explanation:
The concept illustrated in the scenario is the principle of access to medical facilities. In the context of healthcare, the physician working in an emergency room is obligated to treat all patients who come through the door, regardless of their ability to pay. This is a legal requirement in the United States, as federal law mandates the provision of medical care to individuals seeking emergency treatment. While the costs of caring for the indigent are often covered by charities or passed on to those with insurance, the principle of access to medical facilities ensures that individuals in need receive necessary care.