We turn all that off because inevitably someone starts saying: I can't hear you guys, it's coming in robot voice, can you turn off the screen/video share?
>the low resolution, low contrast, washed out, low fps video that makes it hard to read emotion or even detect where his/her attention is?
This is totally disingenuous. We're not comparing a 120p camera to a 1080p camera. We're comparing a sharp camera with great color rendition to a slightly higher resolution of the same camera.
You can use a Black Magic Design Web Presenter which allows connecting 2 pro camera/lens setups via HDMI/SDI, and XLR mic inputs. It shows up as a USB webcam like normal.
Not any good one that does it in hardware out of the box that I know of. There are mod kits for CS lenses for c920/930/brio, if you can live with a tighter shot. If you've an compatible RX100/A6000 or similar laying around, then an Elgato Cam Link like hanselman's setup above might be the easiest option.
The one with the low resolution, low contrast, washed out, low fps video that makes it hard to read emotion or even detect where his/her attention is?
Or the one with sharp features, pleasant colour rendition, high resolution, and maybe even a pretty bokeh in the background?
Humans love pretty pictures. See OKCupids[1] image analysis vs attractiveness for example. Shallow DOF = More attractive.
See also hanselman's[2] thoughts on the matter of having a high quality setup for remote work.
[1]: https://theblog.okcupid.com/dont-be-ugly-by-accident-b378f26... [2]: https://www.hanselman.com/blog/GoodBetterBestCreatingTheUlti...