2 million-1 million years ago, during the evolution from apes to modern Homo sapiens, the brains of our ancestors evolved to support cooperation to support hunting  This made the memory and thinking centers in the prefrontal cortex of human ancestors more developed than those of other primates  As groups become more powerful than individuals, and the brain evolves the ability to manage larger groups, competition between groups becomes more important than competition between individuals, and groups with more cooperative individuals develop better
This evolution has led to the development of altruistic consciousness, ethics, conscience and dignity
Group development depends on the number of cooperative individuals