You cannot put someone on the spot like this on an interview. Unless someone has given it a lot of thought, it is not possible to give you a good answer.

First we started with, you are interviewing for Software Engineer, so I can ask you anything from the whole Computer Science curriculum, and expect a MSc thesis level/quality answer.

Now we are moving to even more broader sociology level questions and expect well thought answers? Great.

I am at a point when I am literally getting up and walking away or hang up the phone when the interviewers starts asking things that they are not supposed to be asking.