Social Entrepreneurs
What is a Social Entrepreneur?
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Over the past two decades, the citizen sector has discovered what the business sector learned long ago: There is nothing as powerful as a new idea in the hands of a first-class entrepreneur. More at www.ashoka.org.

Social entrepreneurs often seem to be possessed by their ideas, committing their lives to changing the direction of their field. They are both visionaries and ultimate realists, concerned with the practical implementation of their vision above all else.
You are right right about social entrepreneurs. I believe they are what is missing in capitalist countries, and in politics. They need to be utilized properly, and they could make the world better.
Check out my blog:
http://melepress.wordpress.com/2008/12/08/sep/