Progress and development aren't without its trade-offs and challenges. It would usually cost a lot of money, energy, and lives to bring a small tribal community to modernity and that's what it cost for many places in the world especially those which the Europeans had exploited for resources and a strategic geographical location. Many locals would shed their own lives to resist the colonizers and in the end fail to bring any fruit from their resistance. They would still succumb to the more powerful and more advanced civilizations. And in Kenya, that came with much expense to the Nandi people in order to build the "Lunatic Express".
(Image credit: Wikimedia Commons)