This is wrong, if you become an influencer who show your wealthy to everyone in social medias, you will gain fame, many projects want you become their brand ambassador or promoting their projects in your content, and you will make money from it. You don't have to be rich, you can take a loan or borrow your friends luxury stuff, just claim you own that, to make people believe in you.

Nowadays it's really easy to make money, but it's really really hard to protect your privacy.

Fake it, until you make it.