I think you're missing the essential point (charitably read). The point is that the rich don't flaunt their wealth. They're not ostentatious. That's what people

I think you're missing the essential point (charitably read). The point is that the rich don't flaunt their wealth. They're not ostentatious. That's what people who aren't rich, or the nouveau riche, do. They're compensating (and frankly, lack the taste to know what to spend money on). That isn't to say that the rich don't spend on better things. It's that someone who's looking for a flashy sign of that wealth won't find one. If someone is flashy, the likelihood they're rich drops.