Why was the reputation of an Aztec warrior more dependent on how many enemies he captured than on how many he killed?

The enemy killed in battle was already useless, and the captive could be sacrificed to the gods at the next holiday.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.