One result is that when people recognize the true nature of these manipulators, it makes God look bad in the world's eyes, this behavior being a false representation of God's nature. After all, these are his dedicated "believers". IOW, in their day-to-day actions, certain religous folk perpetually bear false witness.
Compare:
Chillul haShem (Hebrew: חילול השם desecration of the Name), meaning desecration of the name of God, is a term used in Judaism for any act or behavior that casts shame or brings disrepute to belief in God, any aspect of the Torah's teachings, Jewish law, or the Jewish community.http://en.wikipedia.org/wiki/Chillul_Hashem
The name of God is thereby blasphemed among the nations by these false witnesses.
God is not mocked.