What influenced the spanish settlement in the new world. was it greed, an evangelizing opportunity, power, racism, altruism, or something else? 3?

The Aztecs, Incas, and Mayas were the first in Mexico. Spaniards had then traveled to where the Aztecs lived, this place was called Tenochtitlan. The Spaniards were seen as gods due to the color of their hair, skin, guns, and horses.
 Here Hernan Cortez met a slave "la malinche" who he was given. She had helped him to overthrow the Aztecs.
They had won the war by diseases that the Aztecs weren't immune to and during a grand celebration, they had stormed the place with guns and horses. They were out numbered, but due to the fact that they were seen as gods, panic overcame the people and many were slaughtered, their king/ emperor included.
There main reasons for settlement was greed for the gold and land that was in Mexico.

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