What is the point of this story?

The Ballad of the Courtesy Clerk

Now gather round me, those with ready ear,
Gather round me, to a story hear
Gather round me, to my tale receive
About a depressed economy and an unemployed hero named Steve.

His resume out to employers of all kind
He only got one callback, not what he had in mind
The job was not ideal, but he needed work
And so Steve became. . .
A Courtesy Clerk.

His jaw was square, his uniform still squarer
His skin was fair, his collective agreement still fairer
Keeping quarters from stray buggies was the job’s major perq
But Steve laboured on. . .
As a Courtesy Clerk.

Customers who wish to buy soup, bread, or berries,
May be told “I’m sorry, Sir, milk we do not carry”
Departing from the store, they ask “Who was that apron’d jerk?”
For they’d been served by. . .
A Courtesy Clerk.

To bag cold with cold, to not crush the bread
To perform carry-outs, though they fill your heart with dread
To eradicate wet spills, to one’s duty never shirk
The credo of. . .
The Courtesy Clerk.

Now Steve’s term of service was at an end
His c.v. it was time to mend
And in whatever professions he may in the future lurk
He’ll not forget his time. . .
As a Courtesy Clerk.

Into every sunset must a hero ride
But hear this, Earth’s people far and wide:
Be you from Mogadishu, a Cambodian or a Turk,
Your groceries will be bagged by. . .
A Courtesy Clerk.