The "happiness caps out at 60-75k" meme has been pretty well debunked at this point. Even the author of the original study that came to that conclusion now agrees it was a result of limitations in the design of the study.
> Using this data, which constituted over 1.7 million experience samples, Professor Killingsworth found that larger incomes “were robustly associated” with both greater happiness and greater life satisfaction. Further, there was no observed plateau in either happiness or life satisfaction at $75,000 or any other level. As income increased, positive feelings increased, and negative feelings decreased. [0]
[0] https://www.forbes.com/sites/johnjennings/2024/02/12/money-b...