I also suspect their general vagueness can be exploited to weed out candidates based on “vibes” while still maintaining the impression that it’s a standardized question they ask everyone.
Just the other day, I was interviewing with a company that posted here in the “who is hiring” thread; and I was asked “Tell me about a time when you challenged a fairness or ethical issue”; I feel like regardless of how this is answered, this is just a way for them to project you as a person without backbone who seemingly goes along with anything, or as a complainer who loves impeding others with objections created out of thin air.