Constitution and its philosophy are the fundamentals of law of the land . There can be no law against constitutional mandate or philosophy or basics.
Similarly social evolution is the result of implied or express social proposals and acceptance thereof. Society developed on the doctrine of mutuality.Mutuality is the essence of all contracts and obligations or rights and duties.Otherwise good-faith,  good intention and clarity of aim -object-subject ,terms and conditions makes the mutual understanding the foundation of all the transactions in a civilized law governed society.
Contracts and their nature, relations between the parties to the contract, are the foundation of all civil or criminal laws and even equity and fair play.