And, if I was trying to hire someone and had this type of conversation with them and they stormed off in a huff, I would be grateful. I don't want to employ people who can't get out of their own mental demesne to have the conversation that I, as an employer, want to have, and I for sure as hell would not want to hire someone who got upset that I asked them questions that they consider beneath them during the interview where the point is for me to figure out how much value you bring.

The ground is beneath you too but you would fall to your roasty death in the center of the planet if it wasn't there, and if you have a gaping hole in your knowledge base then identifying and resolving it before some portion of the companies' success is resting on your too-narrow shoulders is a good idea.