No money's to be had

[busker]

Other than that, the poem meanders a bit on the way to its final couplet.  Worth it to qualify the noble-savage myth that all sons of toil are pure-hearted non-SOBs, but for some reason the plumbers, finish-carpenters and welders who never saw diplomas with their names on them seem to find money quite adroitly.

Plumbers and welders need to go to trade school and they do receive diplomas though.
Those working in the really high paying industries (oil and gas, mining) are at the top of their profession and need additional training.
They don’t make as much for as long as fully qualified engineers, but that’s a different point