The question of manipulation skills is an interesting one as to a degree society is built on it. We all operate to some level on the concept of risk versus reward, and societal / cultural / religious / spiritual influence are big driving factors in that.
Most people (I probably naively hope) confine "manipulation" to achieving benign outcomes for all concerned, at least on a surface or obvious level. Manipulation and subterfuge to feed malevolent urges without apparent conscience are terrifying, and aside from immediate undesirable consequences, psycholigical fall out in victims is huge, such as the genuine gas-lighting that can be perpetrated by individuals and authoratative institutions.
Loss of trust and faith is difficult to come back from, and the second guessing is exhausting, as having been fooled, even once, leaves one questioning ones own intelligence and creates a perpetual defensive outlook. It's horrible to have to accept that yes, there are some people who don't give two hoots about your feelings or the negative impact on your life, and if the experience is replicated in other circumstances, it's hard work not viewing new people or situations with suspicion.
In current times I'm struck by how many experiences I and my friends have had with very calculated wolves in sheeps clothing, who have done some dreadful things in terms of breaking trust. Interestingly a good number have EUPD diagnoses, and even when they have been supported despite their actions, it is clear they cannot easily stop themselves. I have immense sympathy for them, but at some point they move onto new friend groups because too many boundaries are crossed, and the complications become above the average persons paygrade, so distance feels like the safer option.
It's sad and tragic for all concerned, but as to the question of whether there is any element of psychopathy or sociopathy involved has never been established, as they do appear to demonstrate remorse and desire to change, can be charming, and yes, manipulative in damaging ways.