I this this is a fair point. I would argue, though, that 99% of the negative news (or most news, for that matter) will have zero effect on 99% of the population (e.g. focusing on individual crimes vs. aggregate crimes or a systemic crime problem).

In an ideal world, news outlets aren't pushing news that is shocking for the sake of being shocking (and therefore, increasing viewership/readership), but pushing news that is actually relevant to a good percentage of their viewers.

Sure, report things like severe weather forecasts, boil water advisories, etc.

But I don't need to know about every crime, or every scandal in Hollywood, etc. -- and this is most of the negative information that's covered. Not the things that are genuinely relevant to most of us.