This is true, but a lot of the mitigating factors in sales were put there by the government against the wishes of the people doing the selling, and in many cases they’ll go to considerable lengths to prevent people from reversing their decisions. Moreover, I’d say it’s probably easier to wreck your life by buying the wrong thing in the wrong way than it is by fucking the wrong person in the wrong way – unquestionably that’s the case if you discount STD’s. Destroying people’s lives, intentionally violating their boundaries, and otherwise harming and parasitizing the vulnerable in the pursuit of profit is a core component of sales as a field, even though any given sales job may not involve it. This bothers people less than I think it probably should.
With small-scale sales that happen in a designated selling place, I’m much less troubled by it, but there are a lot of sectors of sales where making a bad decision could ruin a person’s life and everything is optimized to make sure that as many people as possible do so. The industries where it’s most acceptable to be predatory are also the ones where it’s most destructive to the mark – car sales and finance are big ones, as you note in your examples. And while things like door-to-door and street sales are stigmatized, they’re certainly not stigmatized anywhere near as much as the equivalent style of flirting. So I think it’s fair to say that there is an actual double standard here, particularly in light of the fact that most PUA stuff seems to happen at places where flirting is considered appropriate.
I don’t exactly know where I’m going with all of this, admittedly. I wouldn’t say salespeople should be viewed as negatively as pick-up artists, or that both are benign. But I will say this much: I think that viewing consent and coercion as topics predominantly related to sexuality and the politics of sex – or of having a completely different standard when applied to those fields – warps our ability to think and talk about them.