There is a huge movement to social entrepreneurs, and instead of focusing on a single bottom line of profit, they're focused on a double bottom line, to create social impact at the same time. Just to blow your mind a bit more, there are also triple-bottom-line folks, who are looking to make a profit, have social impact, and impact the environment in a positive way.
This is a huge movement. If you think about someone like Muhammad Yunus, who started microfinance, he is a classic social entrepreneur. In fact, here in Toronto I've worked with about 800 of those folks over the past year alone.