Why was Booker T. Washington's Tuskegee Institute significant?

Activists like W.E.B. Du Bois (who was working as a professor at Atlanta University at the time) deplored Washington's conciliatory philosophy and his belief that African Americans were only suited to vocational training. Du Bois criticized Washington for not demanding equality for African Americans, as granted by the 14th Amendment, and subsequently became an advocate for full and equal rights in every realm of a person's life.

Though Washington had done much to help advance many African Americans, there was some truth in the criticism. During Washington's rise as a national spokesperson for African Americans, they were systematically excluded from the vote and political participation through Black codes and Jim Crow laws as rigid patterns of segregation and discrimination became institutionalized throughout the South and much of the country.In 1901, President Theodore Roosevelt invited Washington to the White House, making him the first African American to be so honored. But the fact that Roosevelt asked Washington to dine with him (inferring the two were equal) was unprecedented and controversial, causing an ferocious uproar among white people.  

Both President Roosevelt and his successor, President William Howard Taft, used Washington as an adviser on racial matters, partly because he accepted racial subservience. His White House visit and the publication of his autobiography, Up from Slavery, brought him both acclaim and indignation from many Americans. While some African Americans looked upon Washington as a hero, others, like Du Bois, saw him as a traitor. Many Southern white people, including some prominent members of Congress, saw Washington's success as an affront and called for action to put African Americans "in their place."