I transferred into his location so I was new. He took it upon himself to be my friend and mentor. The first few months were fine. I go along with everyone and did a good job. This was his information gathering phase. I'm an open person so he learned a lot about me before the red flags went up.
He slowly began praising me, saying I was uniquely qualified for the job and the other guys weren't doing it right. He and I would show them how it was done. His charm and intelligence won me over and I was very flattered.
Simultaneously, he began turning everyone against me, making me dependent upon him. Feeling isolated, I found myself drawn closer into his orbit. I began suspecting him, but I found myself drawn like a moth to a flame to his charisma, praise and intelligence.
He had all the people in positions of authority fooled, so they trusted him. He began telling them without my knowledge that I wasn't very good at my job but he would look out for me.
If I deviated from what he wanted, no matter how small, his punishment was severe. I went to the authorities about this but they just shrugged their shoulders.
When I realized what was going on and being a computer person (this was when I was taking a break from a programming career), I managed to delve into the computer system and show with facts how he was cheating and how I was actually doing as well or better than the others. He responded by convincing them my computer skills were dangerous. They restricted my access to the database. He received a minor punishment because he was popular.
By cheating (and actually breaking the law in some cases) he managed to receive outstanding performance reviews. When the big bosses came to town he was recognized for his outstanding performance. He made sure to tell them I was a basket case that he was trying to bring along.
I began asking around about him. I found out he always wore long sleeve shirts to hide his prison tattoos. I foolishly thought I could fight him, so I found other ways to bring his cheating to light. This went no where because the other employees and management were afraid of him.
When he couldn't beat me outright, he enlisted a confederate to sabotage my work. With my guard up, I became very adept at justifying my work and proving I wasn't in the wrong.
I began noticing how he faked emotions. For example, he was essentially humorless, but he could fake a laugh that when you thought about it, was obviously fake and looked maniacal.
I became worn out, depressed and sick. I left the company. They all thought I was a "nice guy" and said they liked me and I believe they meant it, but thought it was to bad I wasn't up to the job. This was his end game, for the simple fact that he liked the company to be short handed so he could collect more over-time. I believe he actually liked me, but he liked the money more.
To answer your question: The psychopaths I've met are charming, intelligent, popular with people in authority. They get a free pass that others get punished for. You'll see how they cheat but never get in trouble for it and notice how other people are afraid of them. They have a way of working their way into control of any situation. They are very dominant, but in a charming way. They are usually what is called the 'alpha male.'