How does the study of economics contribute to the development of today's society?

Ineed because i cannot find the answers anywhere

Are people more motivated to change from positive or negative experiences, like slavery, womens rights, and any other historical movements/moments? i need more factual information than opinions.

Which of the following makes someone an entrepreneur? a.) becoming a partner in a major law firm b.) becoming a highly paid dancer c.) earning a lot of money as a computer programmer d.) running a company that hires people to fix computers