Well, did anyone really expect gratitude from the man who steals something and marches in with noble ambitions - He carried with him great amounts of knowledge he wanted to share with his people, his tribe... He would teach them and write for them the basic principles of chemistry and medicine, also introduce Latin to them and show them to make glass and ....
Ever see the movie "The Gods Must Be Crazy" - and what the tribesmen did with the "gift" of a Coke bottle from on high (pilot dropped it from a plane)?