Adding a political system

[Bled]

No. Anything more than just a title would either give tons of ability to troll or have to be guided decisions (such as setting MW tax between 5% and 10%).

"Checks and balances" = boring for whoever has it, just an e-peen stroke to have the name.

Plus it makes no sense lorewise.

You miss the point of what checks and balances (separation of power) represents, and it would not be difficult to work into the lore. Earlier in 404BC during the times of ancient Greece separation of powers was implemented into dictatorships along with republics (essentially what we see in FFXIV). So with that said it could be done but the functionality to work required ratios are horrendous, so IMO it should stay out.