Take one hit rap wonders for example. They wear flashy clothes, wear studded out diamond and platinum jewelry, and they all have the same video shoot idea of a pool, lots of girls, and holding $1,000 cash at all times. Things that scream expensive. When in reality, a true rich person doesn't need to display this type of desperation for attention.
Like say for instance, some people call their Mercedes a Mercedes, needlessly pointing out that it's a top class luxury vehicle. Others who may drive a Mercedes might just call it a car.
That's the difference of a true rich person.