You're right. It's not about one being better than the other when compared side-by-side, it's about re-enforcing a particular market segment's belief that their purchasing decision or decision to be was the correct one.

Samsung, or any other same-space competitor is making no allusions about converting hordes of Apple customers based on a chart or infograph; they're reconverting existing customers and trolling for virgins.

td;dr: your wife will put out if you talk about the new girl at the office.