Funny you should mention Coke. It turns out that these businesses desiring profits can pretty efficiently solve or make improvement to problems, like distribution, in places like Africa.[1]
Regardless of their motivation, either with balloons or wires, the deep pockets and ingenuity of Google and Facebook will connect people who aren't. And, they'll do it faster and more efficiently then government, charity.
Their "evil" desire for profits will benefit us, as Coke has, apparently.[2]
[1] http://www.thedailybeast.com/articles/2012/09/25/coke-applie... (2012)
[2] It's obviously not all roses, with the health concerns, etc. Point is that they solved a problem motivated by profit, and now health organizations, etc. are able to learn from that, directly or just by watching. They're moving us in generally the right direction.