The caring for humanity involves addressing man’s perception of the Universe and his place in it. In molding how people think, one can influence the tide of human thought and the egregores we build into our personal and social structures. The most influence one can really have is a very subtle affect cast into the human psyche that is in part, what is meant when it is said the Master of the Temple cast his star into the heavens.
So don’t underestimate the large affect such can have on the body politic. There are those that have defined their age in history. And all has come from an idea and the drive one person has to promulgate that idea.