What knowledge about ancient Greece do historians gain by studying Greek myths?

The study of ancient Greek myths reveals to scientists the picture of the world of the inhabitants of Hellas. The images of gods, heroes and people of their relationship testify to the understanding by the ancient Greeks of the importance of personality and, at the same time, about its dependence on life circumstances. Both gods and people in ancient myths depend on the Moirs (goddesses of fate). Zeus, Hercules, and Oedipus depend on their purpose. Also in ancient myths, the images of the gods embody human flaws: higher beings turn out to be jealous, greedy, prone to betrayal. This indicates that the ancient Greeks did not show much admiration for the gods, they saw them as creatures with supernatural strength, but close to people in their values.