Missionaries

I saw online a quote of the Rev. Desmond Tutu that said, "We are all missionaries or we are nothing." While I get what he's trying to say, I think this statement is in some ways misleading. It may be just a matter of semantics, but doesn't this statement relegate those who give us the great honor of  serving them into the category of "nothing people?" The elderly, the infirm, the imprisoned, the impoverished, the very young, all God's animals? We all know it is more blessed to give than to receive, but how could we gain this blessing without those who have volunteered, in a Karmic sense, to allow us to give to them? It is never right to tell anyone he or she is nothing. Never. All God's children are special and none of God's children is special. Does that make sense? It's from the Course.