Why was Madame CJ Walker's invention important?

Madam C. J. Walker (1867-1919) was an entrepreneur who used a good portion of her wealth as a philanthropist and political activist. She was especially well-known for her $1,000 contribution to a YMCA in Indianapolis's black community in 1912, for her $5,000 contribution to the NAACP's anti-lynching fund in 1919 and for her gifts to many black colleges, schools, churches and civic organizations. She spoke out on behalf of black soldiers during World War I and provided employment in her hair care products manufacturing company for thousands of African American women who otherwise would have been consigned to farm labor and household domestic jobs.

First answer: she was the first African American millonare and created her own line of hair products.