yeah originally George wanted Speilberg to direct Empire, but after all the struggles he had with Star Wars and studios giving him the run around and old out dated studio execs trying to undermine him and stuff up his creative vision, he used the money from Star Wars toys to finance the rest of his movies and never have to be reliant on and over ruled by the studio system.
He resigned from the academy and screen actors guild so because Speilberg was still a member he couldn't hire him for the Empire job, all changed later on after Empire when he became powerful and accepted and ended up like everything he despised ...a giant empire

, Spielberg then directed the Indy series
can't hate the man though he has a social conscience with his philanthropic efforts