As for why it's the vice-dean and not the dean?
It's not about internal suppression by the academies.
In this world, it's always the Magic Monarchs suppressing other lower-level magic professions; rarely would anyone be crazy enough to think a magic academy could suppress a Magic Monarch.
If you feel uneasy, just leave directly, what can you do to me?
In terms of the strength of the Magic Monarchs themselves, they can completely achieve this.
The reason it's the vice-dean is very simple, precisely because Magic Monarchs don't like to trap themselves within this system.
They are not the babysitters of magic academies; they are each top-tier entities deeply integrating production, learning, and research. Even if they leave this circle, there are still plenty of ways to prove their strength, and they can build a sufficiently powerful magic academy on their own strength.