Now that I re-read that sentence, it's not well written. When replying to the parent comment, I wanted to clarify that these napkins will create wealth and help poor people move to middle class. I meant to say that you can not become filthy rich selling 25 cents napkins.
Filthy-rich has different thresholds in different parts of the world. $50k may be a middle class income in Arkansas in the US, but it would be a ridiculously huge amount in small-town India.
