I think the personal satisfaction of doing good in the community and increasing value and holding true to the Hippocratic oath and being able to provide services to those that are in need is very strong moral reason to provide services for the underserved.
A community is like a ship; everyone ought to be prepared to take the helm.
Service ist kein Selbstzweck.
Service to society is the rent we pay for living on this planet.
Price is what you pay. Value is what you get.