We need more info there is no following in you question
Answer:
I think it is because they weren't perfect anymore.
Explanation:
The top dogs were Peninsulares. They were Spaniards born in Spain.
Second are the Creoles, (Europeans+African Americans/Africans=Creole). The third were the Mestizos & Mulattoes. Mestizos;Native Americans mixed w/ Spaniards & Mulattoes were White & Black).
At the very bottom of the Spanish social class were Native Americans & slaves.
The only one with some similarities that I can recall at the time is China. Sorry if that’s wrong.