Sure, technical skills may improve some parts of the world, where the VCs do not corrupt everything. But we should start by making the world around us, our home, our family, our beloved people, our workplace, our towns, better places.
If you want to change the world, try to change your neighborhood for a start. Be nice to people. Even if your are not able to change the world, you can make some places on it nicer and some people happier.
Choose the solution, it may be technical, or not. Tech people know how to create stuff, investigate issues and solve problems. These are fine assets to change what sucks around you.