There's still a lot of salespeople, they're just not a lot that individual citizens have to interact with everyday, usually.

Selling to businesses, for example, pretty much requires salespeople. For example, I know someone in corporate real estate, and you wouldn't believe the type of shit the salespeople get away with there or how ridiculous their compensation is (especially compared to her, who does just as much work trying to win business when putting together the proposals those salespeople present).