We don't need more altruism or nobless-oblige. We need more innovation. Google, who all but started the cloud computing model, is a leader in innovation. They should stick with what they are good at, technological innovation, and not have some kind of save the world guilt trip. The world benefits most by a Google that is focused on the one thing they are great at: search and a cloud computing dev environment.
Don't save us, google. Just keep up the good work. That way, by benefiting from your technology, we can save ourselves. :-)