If you like optimistic Sci-Fi, I would recommend the Culture Series. It really changed me when I read it in university.
How do you know that?
It feels like such a thing is a bit of a cop-out as it removes all the problems that arise from human imperfections and yet our own history is that of an improving standard of living despite these imperfections.
The difference is that there's no need to build AIs with "motivation". Computers don't view us as anything right now, even if they're better at working with bits than us. What would change this in your mind?
Naturally, we will anyway because that's a short-cut and we're not very imaginative. But any kind of AI that would want anything will have to be explicitly built by us.