What are some underrated yet well paid jobs that one should consider and why ?

It's not an easy job. You're constantly moving weights (the truck lifts the garbage bin, but moving a 120 lt bin full of garbage from its spot to the truck and back is not easy either). When your friends are done with their workday, it's time for you to go to bed. You have to work with bad weather, because trash bins must be emptied no matter what. I work in the IT of the company that does the garbage collection in my area. My colleagues are not very enthusiast of their job, lol. But it's a stable job, at least. Pay is decent, but I wouldn't call it good. In other countries though, people doing the same job are getting paid better than in Italy