A story can fall under more than one motivator. A story can fall under more than one motivator because a story's motivator is a "theme" of <em>sorts</em>. It can be a motivator of fear or of power and purpose, or etc. A motivator helps to keep the story moving forward. It's best to use a strong motivator whenever you are writing to keep the story moving. That's why many motivators are considered bad as they put a stop to the writing.
