Environmental groups like the Solar Electric Light Fund, which brings green energy to impoverished areas of the globe, have been featured on Philanthroper.

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But far from the sleek European airports, the South Bronx clinic that receives federal funding and operates in one of the most impoverished U.S. areas uses the instruments to prevent medical record mishaps.

CNN: At Bronx clinic, the eyes are windows to medical records

This is a common building practice in some of the more impoverished and rural areas of Southeast Asian countries.

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Banks have traditionally struggled to find a profitable business model in impoverished areas, where the cost of operating a branch office usually outweighs whatever profits it can achieve.

CNN: Mobile money transfers may infuse developing world

While visiting the mine, Fortuna Silver showed different areas where they work with the people of the area, namely the heavily impoverished area of San Jose del Progreso, 800 meters away from the mine.

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Last year the chief minister of Chhattisgarh, a state where Maoists have a huge presence, pressed India's central government for a 10% surcharge on mining profits so that impoverished rural areas could be developed and people discouraged from joining the rebels.

BBC: Indian tax plans condemned by mining companies

Fred Goldberg, a former commissioner of the Internal Revenue Service who is now a partner at Skadden, Arps, introduced him to the crowd, pointing out that, over the years, Citi has taken many initiatives designed to encourage entrepreneurship and thrift in impoverished areas, setting up lending programs for mom-and-pop stores, for instance, and establishing savings accounts for the children of low-income families.

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LSE, points out, improving the health of the poor is not just a question of cash, or even of getting more doctors into impoverished areas.

ECONOMIST: Public health