Plastic surgery is among the medical specialties with the highest job satisfaction and lowest burnout rate. It pays well, and for cosmetic procedures they don't have to deal with insurance billing hassles. Most procedures can be scheduled in advance which allows for a decent lifestyle without frequent on-call interruptions.
I think you’re conflating plastics with aesthetics/cosmo. Only a small minority of plastic surgeons practice primarily aesthetics.
Majority will have a micro, breast or hand practice and have a side hustle in aesthetics so the overall satisfaction stat you’re citing is not reflective.
There are different hassles in cosmetics like increased overhead, patient expectations (which are much higher in cosmetics) and advertising/patient recruitment. Call can be worse as the patient paying $50k for a rhinoplasty expects the surgeon to answer the phone for every whim.
https://www.ama-assn.org/medical-students/specialty-profiles...