How did Dr. king's leadership benefit Americans who were not black

He showed that blacks can negotiate and pull together in peace, all looking to accomplish the same goal. Whites would have seen this and have a growing respect for the black community.

Martin Luther King Jr. showed all other groups a way to fight for their rights.

Many others followed in King's footsteps who successfully led people to the passing of the Civil Rights Act and a better future for the African-Americans. Many other groups that wanted to fight for their rights like women, used the tactics and the actions King undertook himself, like marches, sit ins, peaceful protest in general.