How is selling not rent seeking? Do we still need sales reps for technology at this point? Is the value of it not plainly aware to the end user? Retail middle

How is selling not rent seeking? Do we still need sales reps for technology at this point? Is the value of it not plainly aware to the end user? Retail middle men made sense in an era of vastly different solutions to logistics problems. The USs problem is individuals are better at individual decision making but we have all these lifelong sales reps, wannabe thought leaders, and politically correct economic of a bygone era to validate. Best Buy, for example, is a car dealership; a land owning rent seeker not inventing anything.