Matt's wife likes him being a salesman. Why does Charlie say she hates him being a barber?

From the text:

Matt had often talked about a barbershop of his own. How he hated selling! What battles they had about it! Rose screaming that a salesman was at least a dignified occupation, but she would never have a barber for a husband. And oh, wouldn't Margaret Phinney snicker at the "barber's wife. And what about Lois Meiner whose husband was a claims examiner for the Alarm Casualty Company? Wouldn't she stick her nose up in the air!