From the same article:

> The goal of gaslighting is to gradually undermine the victim's confidence in their own ability to distinguish truth from falsehood, right from wrong, or reality from delusion, thereby rendering the individual or group pathologically dependent on the gaslighter for their thinking and feelings.

Is the described behaviour manipulative? Sure. But compared to everything I know of gaslighting and the intents behind it I don't see much similarity, not with more context than a single sentence at least. Did the manager do it to help people's careers? Did he try to lure them into a satanic cult? There's a wide range of unknowns.

That's what I said though. The goal may be different, but the process is the same. And while it's not what it originally meant, using gaslighting to mean "manipulating someone into thinking something untrue" is probably pretty common.

Intention does matter to be fair. It's murder versus manslaughter.

I would also add that in gaslighting, the victim is unwilling and unknowing. In the described manipulation, the victim is willing to be manipulated and often even knows that it is being manipulated. So while gaslighting needs quite some effort to convince the victim of something, this injection of an idea is helped by the victims' will to own the idea and deceive others and themselves to that end.