I know that you can't diagnose anyone online, but so many of you seem to have experience of these types of behaviour. Do the actions of either of these people ring a bell? I knew them separately, and avoid them now BTW.
Person A
*Was obsessed with money. When offering his condolences to anyone who'd suffered a bereavement, the first thing he'd say was "will you get much from the inheritance?"
*Believed he was God's gift to women despite being middle-aged, obese and not particularly attractive. He was easily manipulated by two women who'd flirt with him to get whatever they wanted at work.
*Broke rules and procedures at work whenever it suited him (he was a team-leader, but not a senior manager).
*Made no attempt to treat his staff fairly and showed extreme favouritism.
Person B
*Boasted endlessly about his money and luxury lifestyle.
*Was motivated by money and didn't understand people who weren't. For example, he was convinced that anyone wanting to become an actor or musician was doing it purely for money and fame. He couldn't accept that some people enjoy these activities or want creative fulfilment. It was very odd.
*Was a know-it-all who believed that his experiences were universal and made him an expert on everything.
*Loved tricking people or getting the better of them, sometimes under the guise of helping them. He tried to do this all the time. I'm not sure he ever did anything "nice". He once boasted about giving a friend an expensive antique as a gift, only for the friend to realise they would need to spend a lot of money on said gift in order to use it.
*Enjoyed carrying out petty acts of revenge on those who annoyed him.
*Would lecture/condemn people for breaking the law in very strong terms, yet would break certain laws himself.
*Didn't seem to mind if people got annoyed with him, but couldn't bear to be laughed at. Laughing at others was his thing.
*Once admitted to regularly manipulating others for his own amusement.