I can begrudge the wealthy. Look at where Taylor Swift came from. She’s the child of two wealthy investment bankers who moved to Nashville to support their daughters music career when she was still a tween. Taylor Swift has always been a marketing project, it’s all she literally knows how to be since she was a literal child.
Billionaires also don’t just have “I can live on this comfortably for the rest of my life” money they have “I can impact the world if I want to” money. If she never played another concert ever again she could travel the world and eat out at the world’s most expensive restaurants and clothe herself in the most over expensive folies for the rest of her days and still leave a massive fortune to her children. Cupidity has no upper limit though so she’s still focused on accruing money by changing the playing field to her advantage.