Being honest

I work in sheltered housing for the elderly. A resident passed away and I found in cash 19,140 pounds. If I wanted, I could have kept the money but I gave it to the authorities so he can have a funeral and pay his debts and the rest can go to his family. I am need of money, like 4,000 pounds but I still did not take the money. Some relatives and work colleagues are calling me an idiot, as he was dead and a non Muslim and I need the money. Plus they saying that it would not be a sin but my heart is at peace. I want to know if what I did was right?