It seems like most movies about sales have antiheroes. The protagonist is always the villain (Wolf Of Wall Street, etc). Can you name any movies where the salesman is the good guy you're supposed to root for?
I couldn't think of any. Until I remembered that once salespeople get good enough, we stop calling them salesmen and we start calling them "leaders."
Here's a list of movies with heroic salespeople:
Braveheart
Top Gun: Maverick
The Big Short
Air
Remember The Titans
Hacksaw Ridge
The Imitation Game
Free State of Jones
Pursuit of Happyness
Chernobyl (HBO series)
Moneyball