I agree with this 1000%. Once lying is normalised it becomes pervasive in other areas of life, and hard to shake. Even the jw "story telling" that you mentioned often leads other types of more concrete lies - since these " stories" like jw urban legends, they know are not really true yet they continue to peddle them.
As to lying to the General public it's endemic. Even Antony Morris 3rd, when cornered by a reporter asking about the ARC stated he could not talk since he was going to preach the ' good news of the kingdom' *As* he ducked inside a building. A silly lie because it was so obviously untrue. Yet he couldn't help himself. Lying to non jw's is A OK.