Apple are investing resources far beyond the direct economic benefit into accessibility, out of moral concern (with a small PR benefit). This is hard to replic

Apple are investing resources far beyond the direct economic benefit into accessibility, out of moral concern (with a small PR benefit). This is hard to replicate in the open source world where the model is "everyone contributes what they have an economic incentive to create". On the other hand, regular command line tools are fairly accessible to blind users (I imagine, though I wouldn't like to read a man page in Braille, or by TTS), though of course the usual issues of inconsistencies between tools are magnified.