My wife is a physician and she knows one or two otherwise very intelligent, well-respected, skilled surgeons who just do Botox because it's more lucrative.
How many people who get into surgery would still do it with all the same education, testing, training, and licensure requirements if it paid $100k/yr? My guess is not many. If you're in a highly litigious state in a high-risk specialty your malpractice insurance alone could be more than that.
It's not surprising to see smart people leave risky positions with pretty objectively bad work-life balance for more money, less stress, and better WLB.