How did Kipling explained imperialism away from the poem White Man's Burden?

The speaker justifies imperialism by condescendingly stating that the white man has a duty to help the "dark" countries. It exhorts the reader to take up the white man’s burden by sending the best of their country to dark, uncivilized places of the earth. There they should try to end famine and disease and serve their new captives - the native peoples. The poem smacks of cultural imperialism.