People have different presentation styles, and their favorite stories. It is very hard to "force" a completely new visual story metaphor on a good presenter who does a great job selling to customers or investors.

For example, when the CEO "forces" her particular visual analogies in the sales decks that should be used the a 10 person sales force, the result is not always good. The slides will be put on the screen, but then the audio track usually deviates with "hmmm, another way to look at this is [FILL IN FAVORITE STORY].

I usually see how flexible people are with coming up with a completely new way to tell a story, especially with someone with strong presentation skills.