Domestication is the act of humankind changing living organisms into more desirable forms through selective breeding and destroying of undesirable forms. Everytime anyone is killed or punished by society, the result is a more domesticated human species (more moral, more civil, etc).
The next biggest type of genetic selection effecting humans is sexual. Can one find a partner who is willing to have and raise your offspring? This type of genetic selection results in more beautiful (defined culturally and genetically) and social people. Sexual selection results in runaway features: deep colorations, complex song, exaggerated features that are otherwise non-functional, mating habits, etc. Example: In parts of Italy, aquiline noses were a sign of nobility. In those parts, the population has very aquiline noses. The birds of paradise are another good example of sexual selection.
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