Until we get HDR on the web, one sRGB size must fit all. At this point, accessibility and readability are top priority. You can always tone down your backlight, while someone else might have it at full blast and still not be able to read without squinting in the sunlight on a cheap display. I know who I'm more sympathetic to.
As I’ve said countless times before, we’ve got OS support for tonemapping HDR content onto SDR displays, now we need OS support for tonemapping SDR content onto shitty displays.
I don't need accurate colors when reading text, but I need it to be comfortable. It seems having color calibration would actually suck for me if I can't adjust brightness depending on the weather, on the hour of the day, on the season, on whether I'm tired or not, or on the location I currently am, or on what I'm doing (reading, programming, or watching a video). I need to be able to adjust brightness without fuss.
I guess I would buy dedicated hardware and put it in a well lit-controlled room if I needed accurate colors.
I want accurate colors because setting it up is a pain, and switching between accurate and inaccurate colors takes your eyes quite a while to readjust.
It’s much easier to just have everything in an accurate color mode and have content designed for that than to switch it around.
Proper color profiles are actually even more of a benefit for cheap displays than good displays as cheap displays profit from proper colors even more.
The issue with color on screens is a bit like the loudness wars in audio mixing: everybody tries to use the available bitspace to the max, because this made some sense in the days of 16 bit (or lower) audio. Nowadays much more dynamic delivery would be possible (with dynamic reduction as a user preference), yet there is no real, well designed system for such things in place.
I might add that office-type programs were developed at a time where 14 to 18 inch color CRTs were the latest and greatest. The image that modern flat screens deliver is much more dynamic and has way sharper edges, to the degree that maybe we should consider to artificially blur the entire display ever so slightly just so the higher Fourier frequencies get a bit less dominant.