This is a great point. One example of a company doing this is Rocket Internet (http://www.rocket-internet.de/), a Germany-based "internet accelerator" that brings tech companies and services to developing/underserved markets. Some of their properties include foodpanda (http://www.foodpanda.com/, Grubhub/Seamless for SE Asia, the Middle East, Eastern Europe, Africa, and Latin America), easyTaxi (http://www.easytaxi.com/, the world's largest taxi booking app), Lazada (http://www.lazada.com/, Amazon for Indonesia and SE Asia).

They've raised over $4b and created over 20,000 jobs since they started in 2007. Pretty ingenious.