You would "...already be in Africa building schools..."
Teaching them what, pray tell? You may need to think this through just a little more :-)

Supporting the principle of education doesn't mean you need to have a detailed curriculum. It's like if you agree that you should go on a holiday but don't plan every single detail of the holiday. Government policy makers usually allocate a certain amount if funding to education but what is taught, where schools are built, how they are run, etc are determined by other committees and panels set up to manage the low-level details.