The problem is that the End of the World genre is fatigued. There has been a movie, or video game, or TV series, or novel (or all of the above) with an 'end of the world' theme released every year since at least 2000, and many were just continuations from series created even earlier.
The reason you keep thinking, "That reminds me of a scene from [insert other EotW media example]," is because it's all been explored already. This is true of pretty much all fiction, but in this case it's been VERY recently (as in within the last 5 years) explored, and in this exact setting. The discussions have been had and are still fresh in everyone's minds. There hasn't been a 'cooling off' period that would allow a large group of fresh people to come in and see these ideas and tropes for the first time.
It's a theme/genre that needs to be allowed to 'rest' for ten year or so.
As for corporations being an EotW vector? In and of themselves, they can't do that. Now, if they created a virus, or a machine, or started a war, they could end the world. But it would still be 'virus ends the world', or 'killing machines end the world', or 'war ends the world'. Maybe if the corporations sold the world to aliens? No, that would still be 'aliens end the world'.