That's kinda funny b/c many 'dirty jobs' actually do pay a living wage.
Now if you're referring to 'unskilled' labor that a lot of illegals are doing...yes, those don't pay well.
Grab stick of butter, open mouth, insert butter, chew, swallow. Repeat till stick gone.
Had a niece that really liked butter. She was on her way to eating a whole one when she was...4 I think...before we saw and took it from her.