Diplomacy and the Modern Novel

Between 1900 and 1960, many writers in France and Britain either had parallel careers in diplomatic corps or frequented diplomatic circles: Paul Claudel, Albert Cohen, Lawrence Durrell, Graham Greene, John le Carré, André Malraux, Nancy Mitford, Marcel Proust, and others. What attracts writers to diplomacy, and what attracts diplomats to publishing their experiences in memoirs or novels? Like novelists, diplomats are in the habit of describing situations with an eye for atmosphere, personalities