Monsters in their personal lives

Economist, multi-millionaire, and NY Times columnist Paul Krugman writes:

A trivial personal thought: I don't spend a lot of time with wealthy and/or powerful people, but it does happen occasionally given my line of work. And from now on I'll always wonder how many of the well-spoken men around the table are monsters in their personal lives

Not sure what he means here, but if he is piling MeToo victims, then he should worry about his fellow Jews being monsters in their personal lives.