In Pretty Woman, the sales clerk implied the Julia Roberts character could not afford the items in the store.
In Pretty Woman the sales clerk was snotty to Julia Roberts because she looked like a prostitute (which is exactly what she was).
I honestly don't think the salesperson in Pretty Woman cared diddly squat what the Julia Roberts character did
to earn her money. They just didn't think she had
the money to buy their clothes, so they were exceedingly rude to her.
Funny how quickly they changed their demeanor toward her when they realized she could have bought anything in the store, though she was STILL a prostitute. But it was too late. They had shown themselves for what they were and she was quite happy to spend her (actually his) money elsewhere.
Of course there were plenty of people who didn't like the movie, but for most who watched it whether they liked it or not, that part was nearly universally satisfying.