People repeat behaviour that leads to flooding their brains with pleasurable chemicals. The short-term reward loop acts over hours to years, and the long-term reproductive success loop over generations. ↗
As for leadership, I am the kind who leads reluctantly and more by example than anything else. Someone had to be on the incorporation papers as president. ↗
Attention is the way social primates measure status. It is highly rewarding because it causes the release of brain chemicals such as dopamine and endorphins. ↗
Fighting hard to protect yourself and your relatives is good for your genes, but when captured and escape is not possible, giving up short of dying and making the best you can of the new situation is also good for your genes. ↗