There is a sort of genre of optimistic science fiction that I like, and I don't think there is enough of. One of my favourites is a short story by Arthur C. Clarke, 'The City and the Stars.' It's set in this far future on Earth in this somewhat static society and trying to break out.
Monopolies are bad and deserve their reputation when things are static and the monopolies function as toll collectors... But I think they're quite positive when they're dynamic and do something new.