Natural Law and Man's Law or the Legal System are NOT the same. They can be aligned (theoretically) or differ (massively) - it's a whole spectrum! Natural Law: Based upon principles & truth inherent to creation. It is up to your free choice to harmonize with it through knowledge of it and its understanding. It is universal; it exists and applies anywhere regardless of locations, also it is eternal and immutable. It exists and applies for as long as the universe exists, and cannot be changed. Also termed negative rights or natural rights. Man's law / Legal: Mostly based upon dogmatic beliefs which are constructs of the mind. It is complied with, mostly not by free choice but due to fear of punishment. It differs with location and changes with time based upon the whim of legislators. Thats called Moral Relativism. Also termed positive rights or legal rights.
"And the truth shall set you free." Bible, John 8:32. Knowledge about the true nature of reality is key to wake up from unconscious limiting believes and individual perception (you are not your thoughts and emotions) and discover true Self = who you really are. Which leads to Self respect (how can you fully respect your Self if you don't know what it is?), the requirement for your empowerment. And your freedom. There is an inherent truth to reality, it is not individual perception and opinions ("thats my truth!") or dogmas & belief systems (cultural religion, money, new age, government, scientism). Discovering truth means waking up from unconscious patterns and raising your consciousness. Which means nothing else but aligning your individual subjective perception of reality more and more with the actual truth of reality.