All one needs to know about politics can be thought to come from A Man for All Seasons (it's one of my favorite movies; I don't do favorites lightly). St. Thomas More, the patron of statesmen, knew that no one was above the law. He also knew that law was imperfect since it was written by men, especially if the law was disregarded or interpreted away.
If a law seems to be or is in fact wrong, it must be changed, not trampled underfoot alone or in the company of other laws.
The precedence of previous laws must be obliged. However, natural law must be upheld as its underpinning.
Finally, the oath that public officials take are not merely words but binding tethers to the path of an official's destination for the benefit of society and its tradition.
Officials cannot function on the will-to-power but must be grounded in the path toward the common good: otherwise moral, political, and ethical chaos ensues.
For the U.S., "And for the support of this Declaration [of Independence of the USA], with a firm reliance on the protection of Divine Providence, we mutually pledge to each other our Lives, our Fortunes, and our sacred Honor."