Do you really find it unfathomable that people might want to do pediatrics or psych or IM or Family Med with high scores?
"Suck" means different things to different people. For me, I know I have no interest in being a plastic surgeon, or spending 75% of my day treating acne, or sitting in a dark room reading X rays instead of interacting with my patients.
For me, I want to get my hands dirty. I want to work with patients, and money isn't one of the top 5 reasons why I am doing this. (OK, maybe it does come in fifth😉).
In fact, I pretty much want to get my hands as dirty as possible. I want to be an Infectious Disease Specialist. That's out of IM. So my career will involve diarrhea, vomit, snot, parasites and who knows what else.
The initial poster seemed to have a tone of "Oh, look at all these cute little people who couldn't get into Rad/Onc." I dunno, it might just have been me.