I watched broadcast news in America two days ago, in fact, though it's somewhat unusual (I prefer to read news). I do remember some pharma ads. I also remember ads for retail stores, chain restaurants, and tourism (an amusement park, a cruise line, and a more general "come visit place X").

Even if we presume that advertisers are the only stakeholders (forgetting, let's say, investors), I'd disagree that pharma has a controlling interest in the media.