The Farmer Grows - A Poem

This is a poem I remember from my early youth (late 1970s), from a t-shirt by my recollection:

The Farmer grows,

the Grocer sacks,

the Middleman buys

the Cadillacs.

I was probably around kindergarten age, and not understanding commas or the phrasing structure, I took it to mean "The farmer grows the grocer sacks," imagining field of large stalks sprouting brown paper bags. We lived on a farm at the time, and this now seems to be much more politically-loaded than I had originally understood.