Khrushchev would be a great counter to Eisenhower as leader for America. the mid-late 50's had the World holding it's breath. Even a war-monger like Churchill was alarmed. As both the US and USSR were jockeying for supremacy. Why not have some Cold War drama. Nikita was a bit more charasmatic than Ike. It's a great contrast of personalities. Other Civs are used to having leaders at some height of that Civ's status. So why not do the same for both America and Russia?