How exciting!
Hiro was very curious about how things would turn out, how would Juvia handle the corrupted officials and appease the public, and how would his relationship with her superiors turn out to be.
The further one climbs up the social ladder, they would realize that it isn't a ladder at all, but a civilized imitation of the food chain pyramid.
Just as ruthless and bloody, yet it all happened in the dark, behind the public eyes.
At some point, if you want to climb up, you have to drag someone down. It's impossible to keep moving up while maintaining a good relationship with your superiors all the time.
To prevent excessive tension and malicious competition, promotions across the government sector enjoy a wide range.
You can be responsible for public security today, and financial investments tomorrow, and perhaps you'd end up as nothing more than a secretary the day after.