Kipling used his novella, 'The Man Who Would Be King' as a support of the concept of "noblesse oblige."
The Man Who Would Be King is inspired by the things done by James Brooke, an Englishman who became the first White Rajah of Sarawak in Borneo. It talked about the two adventures in British India who eventually became kings of Kafiristan, a remote part of Afghanistan.
By definition, "Noblesse Oblige" refers to the obligations of those belonging to the upper, or noble, class. The more power, wealth, or high status you have, the more you have responsibility to people who are less fortunate..