Slim has his own CarlosSlimFoundation, and he may simply believe, as billionaires tend to do, that he will be smarter about how to dispense that money than somebody else, like another man with an eponymously named charity.
In January, Slim and Khan announced in Mexico City that the CarlosSlimFoundation and Khan Academy had signed an agreement of cooperation to allow students, teachers, researchers and others in Mexico and Latin America to get access to education and training courses by translating them into Spanish.