"The imperialist interpretation of "The White Man's Burden" (1899) proposes that the white man has a moral obligation to rule the non-white peoples of the Earth, whilst encouraging their economic, cultural, and social progress through colonialism.

"In the later 20th century, in the context of decolonisation and the Developing World, the phrase "the white man's burden" was emblematic of the "well-intentioned" aspects of Western colonialism and "Eurocentrism". The poem's imperialist interpretation also includes the milder, philanthropic colonialism of the missionaries:

"The implication, of course, was that the Empire existed not for the benefit — economic or strategic or otherwise — of Britain, itself, but in order that primitive peoples, incapable of self-government, could, with British guidance, eventually become civilized (and Christianized)."

source: https://en.wikipedia.org/wiki/The_White_Man's_Burden