Some weekend researcher talking to someone who is in this field, so maybe ask yourself if you really know what the hell you are talking about.
Yea it is personal to me because I get to see the damage people like you that parrot uninformed bullshit that hurts real human beings, vilifying people they have no qualifications to speak about.
The dark triad is pop science of the worst kind helping fund the personality test market. You can also find sources on the contrary, and you can learn the background of the two people who created it. Do you think psychiatrist are using things like the dark triad questionnaires or the 16 personality test to help diagnose a patient? No.
I’m not even going into the positions of power, my point stick with the usefulness of the dark triad.