The oft-quoted "happiness peaks at $75k" trope is

a) "based on a cursory, wrongheaded reading of the 2010 study" https://www.vox.com/2015/6/20/8815813/orange-is-the-new-black-piper-chapman-happiness-study

b) not supported by more recent @penn research that shows "well-being rises with income, even above $75,000 per year" https://www.pnas.org/doi/full/10.1073/pnas.2016976118