In an earlier life I was corporate lawyer, and narcissism is a basic requirement for that job. My human resources manager once gave me what she considered a compliment, said I was extremely good at acting like I cared about people, when it was a productive strategy. In my defense, I have really cared about some folks in my life, and I ultimately quit that job, when I felt it was taking me too far in a bad direction. There are degrees of everything, and I think most senior executives would fall into the category of second degree sociopath. I didn't take the test. I've done others and I know the result. One can be a narcissist, and not antisocial, if it's managed well. My wife would be the first to say so.
I don't consider this stuff a joke. My daughter is a first degree sociopath. Diagnosed as such by a psychiatrist 20 years ago, checks all the boxes in a much more complex differential diagnosis that the test posted here. Highly functional however, currently employed, two kids, married for 14 years. She's highly intelligent in some areas (ironically, emotional intelligence, she is a master manipulator). Over time, she has learned to act "normal." As a teen, she was scary, and did prison time before graduating college. Anyone who has dealt with a first degree sociopath up close and personal knows what I'm talking about. Aging seems to have a positive effect on the condition.
When I was doing the corporate tour, my boss was a sociopath, and my last two decades on the truck, the other guy who hauled for my customers was as well. Lucky for me, I understood how both were wired, and used it to my ultimate advantage.