"Harry, so am I! Not only am I royalty, I am considered upper middle class in the muggle world. My parents have a very profitable dental practice. I also have a considerable amount of wealth in my vault that is growing at a faster rate than most other vaults." Of course that was due to the Goblins and being on friendly terms with them. Being rude to the people who handle your money, and they will skimp on your earnings. Who knew?  Let’s not forget that I have an entire castle.