What are two differences in the Aztec and Renaissance social hierarchy?

The Aztec social hierarchy was rigidly structured, with a clear division between nobles (pipiltin), commoners (macehualtin), and slaves, emphasizing a theocratic system where priests held significant power. In contrast, the Renaissance social hierarchy was more fluid, allowing for greater social mobility, particularly among the wealthy merchant class, who could gain influence through commerce and trade. Additionally, the Renaissance emphasized individual achievement and Humanism, whereas the Aztec system was closely linked to religious and military status.