He brings water from the source right on your citizens doorsteps. There is a doctor in the house too. For all your malaria suffering citizens waiting to be cured. When you suffer from toothache, this is the man to see. The upper-class citizens don't want to live without him.
Herbs are healthy, ask any of our faithful.
Last but not least, when your citizens are ready to be judged by Anubis, they will make a last visit to the embalmer's shop. Make sure you have enough linen for all those bandages. Well, sort of, this chappy is the fire marshal. He and his friends patrol your town and carry enough water to put out any fire the find. The boys in blue are there to prevent robbery and other nastiness.