You do not need wealth to make 'great art'. It's nice to have access to the best software tools, the highest quality paints, the finest instruments, etc - but those have never been needed. It's pretty reductive to think of art that way.
Wealth is the time required to make great art- Every great artist needs this.
Currently, some artists are able to make a living from their art, and can spend the time and effort to create great art without being independently wealthy- but that is going to become increasingly difficult
