Spreado12 What makes you believe that people in the third world don't have money? Have you ever visited?
If you're talking about people who are completely broke, then why would anybody want to advertise to those people? No matter where in the world they are?
If you want to help people who are not in a "very privileged position", then your best solution is to pay for Kagi subscription for them. But I suspect that people who are broke have very different and more urgent needs than a premium search engine.