You may want to check out this book, a billion new people are going to join the internet in the next few years. He say in the book: if you want to make a billion dollars help a billion people. Focus on doing something of value that will help people. - http://www.amazon.com/Bold-Create-Wealth-Impact-World/dp/1476709564/ref=asap_bc?ie=UTF8
Read 'Bold: How to go big, create wealth and impact the world' by Peter Diamandis. Pretty much exactly what you are looking for. Very interesting read for all entrepreneurs. http://www.amazon.co.uk/372/dp/1476709564