Think about it this way, she's discovered that she's the Queen of the Universe and she has immense power at her command, certainly it's a scary and dangerous position but she's not without allies and resources and she's also discovered that billions of people are regularly being murdered to turn them into a beauty treatment for the ruling class.
So what does she do? Does she:
(a) Use her power, resources and allies to fight that hideous system and save as many lives as she can?
(b) Go back to scrubbing other people's shit off toilet bowls and flying around skyscrapers with her dog-man boyfriend?
Really TERRIBLE ending to the story.