Was It Wrong to Help My Sick Classmate?

(Questions from Little Sister)

A hardworking woman works at our school. I saw that she was very upset and talking to our principal. I accidentally overheard her saying, “My son is seriously ill, and I don’t have the money to fill his prescription.” The principal didn’t seem to care.

At a quiet moment, I went over and insisted that she give me the prescription so my dad could get the medicine. The next day, when I brought the medicine to give her, the principal saw me and said, “Mahya, why did you take it upon yourself to do this without permission?” I said, “Principal, I wanted to do it quietly so I’d earn more reward. But you found out. And I didn’t take it upon myself—I got my dad’s permission.” Teacher, did I do something wrong?