Rather they lay in strictly limited government. Under such a regime, secular government is limited as strictly as possible, and Christians are free to follow God's call for their lives without fear of harassment, or civil or criminal punishment. It has been said that there are only two belief systems in the world, Christianity and all the others. Christianity is the story of God reaching down to man. Socialism, which is based on the idea of the perfectibility of man through the restructuring of his institutions, ultimately fails to impress God because, at some point, it inevitably attempts to write God out of the picture altogether.
Christians like to use the salt metaphor as a rationalization for political involvement.
But this is not entirely true, perhaps not even mainly true. Salt does it primary work when it is invisible, not when it's seen. Salt preserves, not while in a shaker, or in a box on a store shelf, but only when it penetrates the meat or other substance that would spoil without its application. This will not be easy. He promises us anything but utopia.