Government, as originally conceptualized, was to protect the governed from external attacks.
For example,
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The earliest manifestations of government, tribal government, emerged as family units banded together for a greater protection than a mere clan or family group could provide. The tribal leaders were not despots—indeed, they would be unseated if they evidenced those qualities—and whether one was a singular head or part of a council of elders, a leader was tasked with serving the needs of the community. Later, city-states emerged and gradually, the governors moved away from the community that they governed, not so much in physical location but in adherence to the emerging group of leadership.
Well stated. This is a critically important understanding.
It is important to note that even smaller communities (like the Amish) can still develop persistent bullies with mobster ethics.