Plumbers make hand over fist if they're good at their job. Many people get turned away by the "you deal with shit pipes" stigma so whoever sticks around are in huge demand.
It's not so much what the pipes hold that turns me off, it's where the pipes are. Crawl spaces and attics and other shit holes. You get paid so well because it's not a very glamorous job.
I have Arachnophobia. Despite working on it in small ways throughout my life, I still get an extremely strong flight response when one is too close. I enjoy working with my hands and am decent at it. Sometimes I feel just a little cursed. A wee eight-legged dude that wants absolutely nothing to do with me and I'm the one having a freakout.
I knew a plumber growing up. Dude walked around with a wad of cash that would make a gangster blush. Used to run into him on jobs all the time. By the time I knew him he was one of those elder assholes, would spend 5min saving the day with wizardry and old man strength, and the rest of the day smoking weed and being hilarious. R I P Lionel, you were a good one
I imagined how some gang hired plumber to keep shit together, then they see bill, learn that this is how everyone bills, and become plumbers gang. Sometimes it's called plumbers coop.