The reason that fundamentalism makes the claim that God needs his or her services is that it flatters the fundalementalist. He or she gets a self-stroke out of the deal. It makes themselves feel better about what they are doing.
When you figure God is on your side, you can justify almost anything. Recently a spate of bombings of abortion clinics and gay bars in North America has underlined how far this self-justification has gone. The murder of the doctor, (
at church with his wife), who performed partial birth abortions for women and babies that would have died, proved this. I have no idea what they think, a woman does, and she knows if she can handle the baby, it should not make them point their Holier-Than-Fingers at the woman, who is probably going through a guilt trip anyway. The woman does not need condemnation from these "do goodies", who more than likely has never had a abortion anyway and are usually males, and don't know the true story. Why does God need the fundalementalist to carry out his will, anyway. This does not occur to the fandalmentalist, since their concept of God's word becomes their justification, of course they use certain parts of the bible to justify their behavior.
Another appeal, equally damaging, is the notion that you're one of "God's chosen". Such an idea is outright appeal to vanity and ego. His or her reasoning, if they are the "Chosen ones" the other people aren't. They feel better about themselves, because they feel they are better.
It can justify a certain arrogance in thinking they are superior. This is seen in every religion, or public debate involving fundametalists when the subject of abortion rights or gay rights comes up.
They feel that God will protect them because they feel they are doing God's will. Of course if that were true, it would be seen in statistical analysis.
