Authority is being treated as self-justifying instead of as something rented from the people it governs.

This inverts the direction of power in one clause. Government is not the source of order that graciously permits rights; it is a tool instituted for a job — securing rights — and its legitimacy is a lease, not a title. "Just powers" is the qualifier that does the quiet work: power exercised without consent is not merely unpopular, it is unjust by definition, which means resistance to it is not rebellion but correction. The mechanism is consent as the ongoing fuel of authority. Stop the consent and the engine has no right to run.