Just a simple example from today: The CIA's claims regarding Russian election hacking. I'm the CEO of a cyber security company and I'd hate to think what would happen if someone asked me about that and I wasn't aware of it. It's not just CEO's that need to stay current. If you're in PR, policy, marketing, communications, law, research - all of those professionals benefit in many ways by knowing what is going on right now.
Our company heard about the Mossack Fonseca data breach earlier this year and went and figured out a likely vector they used to gain entry within 24 hours and published. I had journalists from the AP on the phone within a few hours.
Certainly there are jobs that can get away with a news blackout. But I'd consider carefully if you're one of those. And I must agree that many days I wish I could just turn it off. The signal to noise ratio, particularly on the mainstream news outlets, is atrocious.