Although Bai Qifeng and the other Saint Emperors' cultivation were high, they were simply loners who trained and adventured by themselves. Although such an unfettered state meant that their cultivation improved very rapidly, they would never understand how large families and sects worked.
That was a kind of politics!
In essence, the Misty Illusory Manor was simply a very large and unique country!
When it came to politics, unless they were charged with treason and rebellion, it was impossible for the ruling government to eradicate a large family like the Zhan Family, which had close to 10,000 years of foundation!