"Get Your Prices Up" by Fred J. Eaglesmith & The Flying Squirrels.
And the internet doesn't have a recording up, huh. Well, looks like it's on Spotify, worth a listen if you've got that one. But warning, that chorus with the old-timey four-part harmony will stick in your head!
https://open.spotify.com/album/3Y5VNgJMGmRQaJbryDctmfWorkin' day to day ~ tell me who's the fool?
Couldn't afford to pay ~ for their swimmin' pools
Couldn't afford to buy ~ all their fancy cars
Get your prices up ~ charge a little more.
Get your prices up ~ n' charge a little more.
Ain't you had enough? ~ who you workin' for?
There ain't really much - that they can't afford.
Get your prices up ~ n' charge a little more.
And if they say won't ~ say they can't, say they don't
Plow that barley under, feed ~ the cows the corn
Stand at the gate - at the end of the lane
Tell 'em if you wanna 'em they're gonna have to pay