Dude, you don't want to go this route in a comic book universe, because the rules of normal humanity do not apply in a world where single persons are extinction level events.
Where the Great Man theory has empirical evidence supporting it.
There's law, and then there's realpolitik.
The Green Lantern Corps can be (uncharitably) characterized as a group of interplanetary enforcers armed with WMDs, who only answer to an unelected racially based group of administrators and have no requirement to consult the locals about their decisions.
Who consider the League of Shadows to be a legitimate part of Earth's political structure.
Whose progenitors unilaterally decided to remove magic from almost all of the universe.
Note that besides the remove magic bit, that same description fits the Reach and it's Infiltrators.
Yes we know the GLC mean well, but by your metrics they have no authority for doing what they do.
And it's not like Grayven/RenPaul doesn't have legal backing for his deeds; the planet of Apokolips acknowledge him as suzerain of Earth.
Hell, Diana is the champion of the Greek Gods, who were...well. Greek Gods.
'nuff said.