This is too cryptic. Be clearer what you mean. Ponzi schemes?

Many companies aren't selling anything special or are just selling an "idea".

Like liquid death sells water for a strangely high amount of money - entirely sales / marketing.

International Star Registry gives you a piece of paper and a row in a database that says you own a star.

Many luxury things are just because it's sold by that luxury brand. They are "worth" that amount of money for the status of other people knowing you paid that much for it.