It is the local community that needs to own the commitment to education.
Global poverty is a complex web of interlinked problems. There is no one 'silver bullet' that will solve global inequality. Multiple contributing factors must be tackled in parallel. Yes, education alone is unlikely to lead to employment without economic reform to address the demand side in much of the developing world.
As our values are the core to who we are as human beings, they are also the easiest way to identify and connect with others in meaningful ways. Think about it - most political campaigns are based around values. Barack Obama's 2008 election campaign galvanized millions of youth behind two very clear values - hope and change.
When you have a celebrity who is willing to shine his personal spotlight on the non-profit and can also speak articulately about the mission, that's really the best of both worlds.