Lavrentiy Beria was the head of the NKVD (USSR secret police) during WW2 and also a serial rapist/murderer, the high ups including Stalin all knew, but consider

Lavrentiy Beria was the head of the NKVD (USSR secret police) during WW2 and also a serial rapist/murderer, the high ups including Stalin all knew, but considered him good enough at his job to essentially let it slide though of course they never let their female relatives anywhere near him.