Zukerberg is free to wast his money however he chooses. However, if he actually wants to make a difference, he might consider contributing toward alternatives to the public school system. The competition would help the public schools, which are under-performing, as any monopoly tends to do.
Wow. Competition works?
Agreed. The endowment of a private, tuition assisted school for those meeting entry requirements (as adjudged by a panel who only sees grades and accomplishments, not names, addresses, or any other data) for students who wish to excel might accomplish far more than funneling funds into the broken public school system, provided social inertia did not undermine that goal to succeed.
I will give him this much credit: He spent his money instead of calling for other funding.