They were known as muckcrackers during the progressive era
In Aztec social hierarchy, people who are called "Serfs" are the ones expected to support the upper class. They belong to the lowest social class in the Aztec culture and required to do labors for the nobles. As for the Incas, "Commoners" (farmers, artisans, servants, etc.) are required to support the higher class for they do not practice slavery. Majority of Inca's population belongs to the commoner class.
Power? The President can give any order to a government agency without having to go through Congress.
You dont. you keep it forever cause it’s worth it.