But in my career in Silicon Valley I really came to respect good salespeople. I often had roles where I was debugging customer-reported issues, and good salespeople make everything smoother.
I came to a conclusion that there are two types of sales transactions: one that is a one-time transaction and one that is an ongoing transaction.
The one-time salespeople were just like this article: they are just trying to close a sale knowing that they don't ever have to deal with you again. If they lie, they don't have to deal with the consequences. So their incentive is to spew any kind of nonsense or lies or manipulation to close the deal.
The other type of sales guys depending on building relationships. with engineers on both sides, with management, with purchasing and billing people, with everyone. When I was working on customer bugs, having a great sales guy representing the account made everything much easier. They could get the customers to loan hardware, assign more resources, get documentation, negotiate for time, etc. I respected these great sales guys because they had real skills and talent in these spheres that I didn't.