People seem to dismiss the value of humility and frugality nowadays, but I see them as important virtues that lead to a more enjoyable life. Counter intuitively, wealth can allow someone the freedom and privilege to live a simpler and more frugal life, which can feel more rewarding and fun.
For one, I like to have a connection with the place I live and the physical objects I use like my car and home- the fact that they are old things I fixed up and maintain myself gives me a sense of place, connection, and pride- just buying something expensive that someone else prepared for me would feel infantalizing and unsatisfying. I enjoy deeply understanding and being part of the history of the objects and tools I use, in a way that can’t be purchased.
Also, I think a lot of consumerism and conspicuous consumption comes from a sad and depressing place of anxiety that you aren’t good enough to make friends or find romantic partners without doing this. Many people don’t directly want or enjoy conspicuously expensive things, but are hoping it leads to social status or approval. But this inevitably means resigning yourself to essentially buying the company of people that don’t actually like you. At the extreme end you see some famously wealthy people so anxious about not being perceived as wealthy enough that they glue tacky fake plastic gold on everything they own because they’re afraid of looking poorer than billionaires. That type of narcissism is not a happy way to live, and will turn off the kind of people that would have built a genuine emotional connection with you.