It is not a pastor's job to help people reach their full potential. Our full potential is terrifying. If we all reached our full potential, we'd be out in the streets murdering each other.
The only reasons we're not all out in the streets murdering each other is because of the grace of God and because we prefer more convenient and more comfortable sins.
It is a pastor's job to remind people that their full potential is utter depravity but that the free gift of God is eternal life in Christ Jesus the risen Lord.
The minister's job is not aiding self-actualization, but self-denial and Christ-exaltation.