According to conventional wisdom, the best way to boost your salary is to get an offer from a competing employer with a higher salary. But if you've already decided where you want to work, and you're not well along the way with other employers, it's disingenuous to start interviewing elsewhere, not to mention a waste of your time.
Let's put this into perspective: When we talk about underserved populations in developing countries, we are talking about people who are living on less than $3 a day. They may have never had a formal job and most likely have, at most, a high school education. They don't have a bank account, they may live in a slum, and they may not have enough money to eat three meals a day.