What term expresses the belief that a society must be governed by established principles but society as a whole?

The term that expresses the belief that a society must be governed by established principles while considering the needs and will of the society as a whole is "social contract." This concept suggests that individuals consent to form a society and be governed by agreed-upon rules and principles, balancing individual rights with collective responsibilities. It emphasizes the importance of a structured governance system that reflects the collective will of the people.