High I's and cult like attitudes?

Sorry for the long post, but maybe someone has some insight.

I recently worked in a non-profit organization ( a start-up) where the leader was a high I. The exec at the company had, what I consider, a cult like leadership style: you are 200% into the cause or you don't belong there.  The organization comes before you and even your family. Th expectation was that you were always available, including weekends, and should never question management.    I left their employment after a short time.

I recently went on a odd job interview.  I performed 50/50 on the interview, and I admit this . They liked my high D personality, but I blanked out when I was asked a technical question regarding my field, pure nervousness.  At the end of the interview, the CEO of the private firm came in to talk to me.  He started to tell me that he wanted to be "candid" (the exec of the former company would always use that term - "candid") and began to tell me how he felt I was not a good fit.   Their main concern was that my advanced degree was in another field and that I could leave at any time.  He seemed to, again, have this cult like attitude as he spoke.  He asked me many personal questions about my degree and ambitions, and he made the same exact "thinking" faces that the prior exec made.  It was so odd to say the least and my impression was that he was a high I.

This is my own experience, but any feedback is welcome.