What is making the recruiting officer lose his confidence in mankind in the play, Mother Courage and Her Children?

While waiting for men to pass them on the road to recruit them into the army, the recruiting officer theorizes about frail and unfit men they may recruit into the army who would let them down. He follows this thought with a statement that one cannot trust anyone to be honest anymore and this lack of "faith, trust, and honor" makes him lose faith in humanity.