It’s the responsibility of journalism and its practitioners to not just cater to what audiences want, but what they need. It’s an important part of building trust between news and audiences. There’s no shortage of accusations that media broadly is arrogant and elitist. Not adequately covering parts of the country simply because it doesn’t drive enough traffic is very much a part of that problem.
I’m not sure who you’re referring to in terms of “their target audience,” but I’m not referring to specialty newsrooms that cater to hyper specific audiences. I think it’s safe to say that most newsrooms doing acts of journalism for the public good will benefit, and more importantly their audiences will benefit, from helping people discover stories and perspectives that may be otherwise filtered out.