"For the Law, since it has only a shadow of the good things to come and not the very form of things, can never, by the same sacrifices which they offer continually year by year, make perfect those who draw near." HEB 1:1
The establishment of law isn't the mark of a civil society, for it's our lack of civility that prompts their establishment in the first place. As the hearts of people begin to reflect their authentic identity, (made in the image and likeness of God reflecting His love and goodness), one would think that we would reward ourselves by eliminating laws one by one in due time. Instead, we continue to make new ones.
Ignorance would say that which is legal is also righteous, just as it would say that we are righteous because we don't break laws. That is what defines a legalist. It is one who defines righteousness by law. But Jesus dares us to live in perfect liberty by making us righteous apart from law. It is how we respond to freedom that reveals the heart of a people. What reward is there for walking a path that you are chained to? The fact that we need laws defining our behavior is proof enough that we don't truly know who we are. But we're waking up...