Humans, regardless of social, physical, or mental level, all have some value. For people of lower social level, they still have value by performing jobs that help make everyday life for everybody else possible. They perform jobs such as food service, sanitation, and construction, all of which are necessary for people to live in comfortable environments. People of lower physical levels are very useful because in most cases, they can be the doctors that cure illness, the scientists who create new medicines, or the person who creates a new economic plan that helps a country save money. Although they may not be the strongest or fastest person, they could be the smartest person. Even people of lower mental levels can have value. They can show people to not take for granted what they have. They can show someone how fortunate their life really is and help a person from making destructive decisions in their life. All people have value in some way, whether it be helping make life cleaner and easier, curing disease or a failing economy, or showing a person that their life is not as bad as they think it is.