The Billionaire Dad's Revenge

I, Zane Lawson, am a billionaire but I lead a low-key life with my son. When my son, Leo Lawson, is bullied and bleeds, I go to the principal, only to be called a 'pauper' and told not to cause trouble, facing expulsion. As the entire school is laughing at me, the unveiling ceremony for the new building, marked 'Anonymous Donation,' begins. I change into a suit, walk to the podium, and tell these snobs: I built this building, but you are not worthy of entering it!