Trivial on the surface, but if you were to explore the circumstances of each greeting you would develop a decidedly untrivial picture of the course of events in the middle of the twentieth century.
He had an amazing career surviving Stalin’s jungle (although his wife was purged) and then continuing a key role after Stalin’s death and on into the late 1950’s when he got on the losing side of the plot to oust Khruschev.
Even though he wouldn’t pee if his pants were on fire without authorization from Stalin, I have to rate him as the most important diplomatic figure of the 20th century. That’s because of the trivia question and what you noted about the importance of all those meetings.