How do you quickly and effectively turn scumbags into upstanding young people of the new era when you live in a giant landfill?
Answer: Walk their path, and leave them nowhere to go.
After years of envying the Gojo family, the Zenin family finally welcomed their divine child: powerful enough to disregard everything, wanting nothing, putting the family first, and entirely under their control.
That was all in their imagination. The reality was
5t5: The whole Gojo family does whatever I say. I do what I want.
Yayoi: Every piece of trash in the Zenin family is my dog. I tell them what to do, and they do it.
5t5: The higher-ups are rotten oranges. I'll kill them sooner or later.
Yayoi: Get out there and take missions like ordinary sorcerers right now. Think you can pretend to obey while doing whatever you want? See this sword?
5t5: Curse users can only hide in the gutter and keep their heads down because I exist.
Yayoi: This is hilarious. Since when does trash get to worry about human rights? You're all going to work for me. Slacking off? Then you get the daily Hinokami package plus Reverse Cursed Technique. It's just what you need.
5t5: ...I feel like I'm losing. No, I need to get back on my feet.
Everyone in the jujutsu world: Are we supposed to live like this?
Bonus scene:
One day, after finishing a mission, the Heavenly Restriction Tyrant happened to pass by the Zenin estate. He planned to check whether his stupid little brother had died in some corner, only to see
A black-haired, red-eyed boy lounging lazily in a recliner.
A crowd of Zenin surrounded him, massaging his shoulders, fanning him, feeding him water, and showering him with praise. They were all hard at work. Even the once lofty head of the family could only kneel at his feet in humiliation.
Fushiguro Toji: !!!
Fushiguro Toji: ???
Wait, is this really his gentle, easygoing little brother???
Premise: The light of righteousness may arrive late, but it always arrives