Hmmm. I know that a lot of atheist libertarian types take that position, but I wouldn't be so quick to describe it as conservatism, properly speaking.
Also, many, many godly people.
Godly people know that individual libery in fiscal matters leads to more individual responsibility. As a sense of individual responsibility grows in society, families are healthier. Thus, community is stronger...many social issues take care of themselves.
In addition, the church prospers because the Gov't is no longer looked to as the prime dispenser of charity; the church is restored to her charitable functions. These are godly dynamics.