The ultimate outcome of such thinking can be devastating. Chaos can reign. Germany experienced this under the reign of Hitler. We should not be so smug as to think it could not happen to us. These are the ideas that permeate the education a student receives outside the classroom.
Some suggestions are in order.
First, the student should be encouraged to understand that God is the measure of all things, not man. God is an eternal being who is the guide for our lives, both temporal and eternal. Thus we don't first ask what man thinks, we ask what God thinks. So this means that the student must decide on his primary textbook. Second, the student should be led to realize that God's will is the highest good, not pleasure.