I think the author is treading a fine line between "nice person" and "confidence man", maybe without realizing it. He's describing social engineering, and I have no doubt that it's a very effective strategy.
> “I thought you were a terrible ass-kisser when we started working together.”
> She paused and frowned. “But it actually helped get things done. It was a strategy.” (That is how an impolite person gives a compliment. Which I gladly accepted.)
There is something disappointing about realizing that someone's confidence tricks do work. It sounds like this coworker was grappling whether this is a strategy that they should adopt, because they can see the efficacy, but it feels morally painful.
I'll give the author the benefit of the doubt when using tricks like these for work, especially if you're a politician or marketing person, or something else where appearance and illusion dominates the field...
> One of those people is my wife
But this makes me cringe. I know that if I was this person's partner and I read this article, I would start to feel very uneasy.