Yes, the series is inspired by Nietzsche's concepts to a large extent. Did not belabor the connection in the series since it would lose half the readers.

There are subtle differences between what I am describing and the ubermensch concept though. My categories, I'd say, are closer to being varieties of "men without backs"/last men (see Fukuyama's "End of History"... and no I am not a neocon :))

Venkat