I fist briefly describe cultural evolution and gene-culture coevolution and then outline what I call "the tribal social instincts hypothesis" which argues that gene-culture coevolution substantially remodeled the innate components of human social psychology. But innate moral intuitions don’t work on their own, they are implemented by norms and institutions more or less particular to each organization. I then argue that much of what organizational management amounts to is trying to shape the norms and institutions of quasi-tribal groups so that they work better.