A ruthless person

Another person threw letter. It's the 4th person who threw the letter within one month. Every this time of the month, you will see people throwing letters in that Dept.

She is mean.
She has no friends.
She likes to manipulate her people.
She likes to hire people who are introvet.
She bans her own people communicating with others.
She makes mistakes but she is smart enough to cover up.
She is unfriendly to colleagues who are lower ranking than her.
She is ruthless when she wants her people to leave.

It's a norm for people in her dept to leave every month. Some of them are quite "tough" but none of them stayed more than a year. Everyone dislike her but there is nothing they can do. She will come out with reasons that why there is a need to change people in her dept.

She reminds me of my Vice President in my previous co. He possessed the same kind of character. Strangely, these people never failed to leave the co, despite of their ugly sides. Either the top management seems able to "tolerate" them or choose not to see their ugly side.

I just can't help but to pity these people. They may be "successful" in their own ways but they can never be happy. They may seems to "own the whole world" but their soul is empty. They are just too pathetic...