The absence of brands which might be expected to target a very narrow market segment doesn't really help us understand if this ad for a mass-market product was

The absence of brands which might be expected to target a very narrow market segment doesn't really help us understand if this ad for a mass-market product was targeted. But you're right, it probably was to some extent. I guess my main point was that this is a completely different category from present-day individually targeted ads. Bank then Rolex didn't need to invade anyone's privacy when choosing to advertise in "More Money Than Sense Monthly"