The interesting thing is that it's often talked of as if it has to be a revolt against society and its strictures. Er -- no. There's many a situation where supporting such rules makes the character a rebel. A jeered at and detested rebel. While the jeerers are doing their best to destroy the society that permits them to jeer in the first place.
A society where the old stories of the knights' magical swords being able to strike down immaterial monstrosities, if the knights were pure of heart, were jeered at -- where the monstrosities came back and one knight proved the old story was true -- well, they would probably turn on him like a pack of wolves on a lamb.
So spake the Seraph Abdiel, faithful found
Among the faithless, faithful only he;
Among innumerable false unmoved,
Unshaken, unseduced, unterrified,
His loyalty he kept, his love, his zeal;
Nor number nor example with him wrought
To swerve from truth, or change his constant mind,
John Milton, Paradise Lost