Human society and the human soul need three and have always had three functions performed to flourish: they need the prophet, the priest, and the king.
The king is the governor/administrator. He executes the will of what he rules in order to keep it strong, healthy, and magnanimous.
The priest is the teacher, the bearer of the tradition, and the one who makes offerings to the gods or God.
The prophet is the conscience, the one who reminds the community what it is for, what it is committed to, what it ought to be.
Modern society and especially the conventional school has regulated and systematized itself to the point where the prophet cannot be heard.