I disagree that we should deride rich people for spending money the way they want. I splurge on things sometimes as well. Unlike a lot of modern social media, I don't think there's anything inherently immoral about being wealthy.
If someone has an argument about what these specific people did that was specifically immoral to achieve their wealth, then they should call that out specifically and suggest a systemic change.
I find the mindless rich-people-hate to be nothing more than juvenile hate.