If I had money I would invest in...

Contraceptives (the developing world is full of undeveloped options of pregnancy termination, do the math and figure out the profits!)

Water companies (the world is not going to get doomed because of water shortage, look for the entrepreneurial efforts in converting salt water to fresh water, pick a smart one and invest in him!)

Private security in India (where government supply fails, the market shalt take over!)

Education (My favourite! Figure this out, you have a legal rule that says you cannot make profit in education, when that legal rule falls imagine the opportunities with the number of children out there, but for now, invest in coaching companies)

Election campaigning (Once the market for politician-crowning matures and there are less of goondas out there, more white-collar job options out there!)