What a weird example. Steve Jobs wasn't a coworker or had any position of power over her, he just gave a lecture she attended. Sounds perfectly compatible with rayiner's position.
Also Bill Gates.
Anyway, my personal wish is coworkers should never, ever date. There are so many options, why take one that has the potential to blow up? Yet, it's one of the common ways people meet. I even knew one who married a woman he interviewed and hired. If only we could all be more logical about relationships. :/