A government that doesn't punish violations of Natural Law is not a legitimate government.
Discussion
This would require governments to behave logically from first principles, which is a stretch for any government more complex than a philosopher king.
Of course, anyone suggesting a philosopher king as the optimal form of government is a retarded cuck.
LOL you have no idea what is natural law
Natural law and govs explained in simple terms - aka govs are a direct violation of natural law

Government itself is a violation of natural law.
Natural Law enforces itself.
Government can never be legitimate.
And since a government can only get the resources to punish violaters of Natural law by violating Natural law, it can never be legitimate by definition.
What's the difference between Natural Law and the Common Law?