Outer (visible) motivation/goal ?

[Capt Quirk]

Your example appears born more out of the desire to manipulate the audience for shock value. While it may be more "true to life", that doesn't mean it's true to the world of your story. And that's the difference.

And probably 60% of what people say about any movie is, they saw it coming... and they don't say it like it's a good thing either. Shake them up and surprise them, they really want it. Yes they do