Well the social vision of anarchy would not include markets and economic gain through bargaining power so the doctors would have no hold over those who worked the land and vice-versa. Each would offer their services and goods as part of their contribution to society. If we dismantle the economic conditions which allow the powerful to gain reward, with little or no correlation to contribution, like markets, and replace them with social institutions that ensure the best outcomes for all actors then me can have an economy that promotes and protects positive, altruistic contribution. Do doctors in the NHS turn away poor people? No, the NHS is not an institution that uses its power to gain in the market. Look and we can see that there are other ways outside markets and corporations for running an economy. Different ways give different outcomes.
"The essence of all slavery consists in taking the product of another's labor by force. It is immaterial whether this force be founded upon ownership of the slave or ownership of the money that he must get to live" -Leo Tolstoy
"Government is the shadow cast by business over society."
John Dewey
RIP Ian Tomlinson (victim of UK police brutality)