If you have religious faith, very good, you can add on secular ethics, then religious belief, add on it, very good. But even those people who have no interest about religion, okay, it's not religion, but you can train through education.
There is a species of person called a 'Modern Churchman' who draws the full salary of a beneficed clergyman and need not commit himself to any religious belief.
You will notice that the Occupy Wall Street crowds - and the progressives who support them - focus on bringing the wealthy down to earth rather than lifting the 99 percent. They have a nearly religious belief that too much wealth is fundamentally immoral and unhealthy for society.
You can not divorce religious belief and public service. I've never detected any conflict between God's will and my political duty. If you violate one, you violate the other.
On the subject of religious belief, we relax standards of reasonableness and evidence that we rely on in every other area of our lives. We relax so totally that people believe the most ludicrous propositions, and are willing to organize their lives around them.