In my opinion I just think many Dukes of CE are just too happy with their realm wide extortion of taxes of their nobility far above a reasonable level to want to even try to change things.
Realm-wide? Obviously there is something that I am not taking advantage of...and there I thought that I could only tax my duchy.
Much better to simply sit on ones gold mine and continue to keep ones nobles in poverty and busy with useless wars.
Yes, because keeping them in poverty ensures that we will lose any wars that we fight
