A lot of sales idiots do make 6 figures, but it usually is either people who have been in their position long enough to have tons of referrals, or SaaS or medical device sales. I personally know people making 200K or more a year in sales

That said, yeah a lot of people will throw out 6 figures in the interview to bait naive people into taking the job when realistically newbies will starve to death before they make 6 figures in a 100% commission based job