Loraine Boettner notes the connection between Calvinism and republican (representative) government:
Politically, Calvinism has been the chief source of modern republican government. Calvinism and republicanism are related to each other as cause and effect; and where a people are possessed of the former, the later will soon be developed. Calvin himself held that the Church, under God, was a spiritual republic; and certainly he was a republican in theory. James I was well aware of the effects of Calvinism when he said; “Presbytery agreeth as well with monarchy as God with the Devil.” Bankcroft speaks of “the political character of Calvinism, which with one consent and with instinctive judgment the monarchs of that day feared as republicanism.” Another American historian, John Fiske, has written, “It would be hard to overrate the debt which mankind owes to Calvin. The spiritual father of Coligny, of William the Silent, and of Cromwell, must occupy a foremost rank among the champions of modern democracy . . . The promulgation of this theology was one of the longest steps that mankind has ever taken toward personal freedom.”
We don’t ever hear of Calvinism’s influence on political freedom. If we did we might enjoy some. But if Calvin is right that the church is a spiritual republic (of course beneath the ultimately monarchy of Jesus), where rulers are representative and expected to be humble servants, not in it for the money, then faithful churches ought to be models for civil government. Power is used for service, giving is personal and cheerful, and individuals and families are held accountable and responsible. A church that functions this way serves as both an example for how rulers ought to serve and an antidote for when they don’t. People used to excellence and faithfulness won’t settle for less.