Quoting J.I. Packer in A Quest for Godliness:
Theologians are called to be the church's water engineers and sewage officers; it is their job to see that God's pure truth flows abundantly where it is needed, and to filter out any intrusive pollution that might damage health
I think that is also a part of the job description for pastors and teachers.
Hat Tip: DashHouse: A Theologian's Job