What anon says >>75
is true, the incas even forcebly relocated conquered tribes (now enslaved) to other parts of the empire, and scholars ans artisans too, as the mongols in Asia. And in the top a society bases of religious classes -the inka was the son of the sun- there was a nobility and religious structure that sucked as a leech the surplus of the ayllus (1/3 of the land for the inca, 1/3 for the sun, 1/3 for the ayllu)
The important thing frankly is the ayllus, wich were the collective way to exploit the land. Mariategui and others saw a possible peruvian revolution (or a possibility of a based campesinado) with this historical precedent.