Why sit and twiddle your thumbs for an hour (increasingly becoming upset with your business partner) when you can whip out your laptop and get some work done instead? Or your cell phone to talk with the family/friends?
I'm the same way. It's not really meaningful work but just whatever you can do to pass the time. My mind doesn't context switch that greatly so when I'm in "Let's slow down and talk this out" mode, I'm absolutely not in "Leave me alone I have to solve world hunger" mode. They're typically mutually exclusive.
I've been living in America (East Coast, Bay Area) for the last 54 years, and I don't recognize the America described in about half of the HN comments I've seen recently (including this comment).