I learned as a teenager, doing retail sales, the job is to sell.
Moreover, for a salesperson at a phone store, the job is to sell
contracts for mobile service. The phones are a mere courtesy detail, if not a loss-leader.
You'd hope that the salesperson understood the pros and cons of the plans they were selling, but if you've done 30 minutes of research into the actual phone model you're interested in that's likely 29 minutes more than the salesperson has. Of course, there are always exceptions, I wouldn't want to tar everybody with the same brush, but the thing that will earn commission/bonuses/promotion is pushing the things that make the
retailer money.
Its true in other areas, too - the real money and incentives are often commissions from selling finance packages, extended warranties, overpriced accessories etc. Last time I bought a new-ish car it was pretty clear that the dealer didn't give a wet slap about trying to upsell me to a more expensive car and was only concerned about selling me finance (despite me having the cash figuratively sitting there on the table) premium bodywork treatments and anti-minor-damage insurance. (Oh, and the bit of theatre where the salesperson goes out to check with their manager before accepting your offer - I have it on very good authority that what they actually do in the UK is put the kettle on. Presumably in the US it's staring the coffee maker).
I think I really confused one PC sales assistant by asking for the second worst Chromebook in the store... (I wanted to test some apps on "realistic" hardware)
See that’s the thing; I don’t look forward to going to work because I’m making money, rather I look forward to going to work because there is the potential to help another human being with something.
...a privilege enjoyed by those of us who (a) have sufficient money not to stress about it, (b) have worked for people who notice and respect that sort of thing and (c) work in a field where "helping" someone doesn't mean browbeating them into buying more than they actually need. Even then, today's "something" often turns out to be something tedious, annoying, ultimately pointless and not what you studied/trained for.