The Fundamental Difference Between "The Founding Fathers" and "The Government"

Emailed in by Robin Smith, from the ultimate Faux Libertarian/Home-Owner-Ist pressure group in the USA:
Mission
Our mission is to protect private sector legal rights, so that land ownership remains a fundamental right derived from natural law envisioned by our founders, as opposed to a benefit and privilege conferred by the grace of government.
I asked him what he thought the fundamental difference between "The Founding Fathers" and "The Government" was and he replied:
Founders: do the conquering
Government: maintain the conquering
Subtle. This all works out, so long as they don't complain when a new conqueror comes along and "founds" a new state.
I personally would be interested to know whether these Faux Lib-Homeys could pin down the exact date on which there was a shift from "conquering" to "maintaining the conquering"? Presumably that was the date that they or their predecessor were granted the title to the land they currently claim to own, which might be centuries ago in some cases or quite recently for somebody who has just acquired a title from "the government".
That would appear to be the date on which "natural law" gave way to "benefit and privileges conferred by the grace of government".