Arguably if rich people are just buying the $1000 concert tickets just to flex and take pictures for IG, that's a seat that could be going to a 17-year-old who loves the band's music but can't afford more than $100. The 17-year-old meanwhile may never get to go to a show of any of their favorite bands due to this situation, meaning they miss out on this meaningful chance to connect with the music in a personal, in-person way.
Basically the case hinges on the assertion that the richest fans are not the same as the most serious fans.