Re: your point about interviewers looking for their expected/standard answer vs an actually innovative one...
I take that as part of my job in interviewing the the company/interviewers. I will very deliberately give a more radical, non-standard but correct answer precisely to see if they fit into that broken/fixated mindset and see how they deal with being challenged. The dynamic of how they deal with that shows everything about not just how clever they are but how intellectually honest, curious, and emotionally mature they really are.
I take that as part of my job in interviewing the the company/interviewers. I will very deliberately give a more radical, non-standard but correct answer precisely to see if they fit into that broken/fixated mindset and see how they deal with being challenged. The dynamic of how they deal with that shows everything about not just how clever they are but how intellectually honest, curious, and emotionally mature they really are.