I was recently reviewing some notes and materials discussed in a university Business Management course and came across some notes on 
Muhammad Yunus, Founder of Grameen Bank in Bangladesh. He is said to be the "Father of Micro-Finance". Whether you agree with his social agenda or not, he has begun a sort of revolution in building entrepreneurship in some extremely poverty-ridden areas of the world. The concept of micro-loans is even available in the U.S. It may be worthy of looking into. 
Professor Yunus developed his programs based on Seven Principles of Social Business:
Business
 objective will be to overcome poverty, or one or more problems (such
 as education, health, technology access, and environment) which
 threaten people and society; not profit maximization
 Financial and economic
 sustainability 
 
 
 Investors get back their
 investment amount only. No dividend is given beyond investment money
 When investment amount is paid
 back, company profit stays with the company for expansion and
 improvement
 Environmentally conscious 
 
 Workforce gets market wage with
 better working conditions 
 
...do it with joy