I think a significant hint lies in your use of the word "motivation". In order to be motivated to do something, you have to have conscious thought and a sense that there is something wrong happening. When it comes to accessibility and software development, accessibility issues doesn't even enter the mind of most software developers and if it does, it's overruled by most managers as irrelevant to the majority of the customer base. interesting calculation would be to see if it's cheaper to warehouse disabled people than it would be to make the world accessible to them. from people's actions, I would say that their intuitive sense is that it would be cheaper to warehouse. I'm not saying that's what they think but that's what they demonstrate in their actions.
Maybe I'm just a know-nothing 'tab', but I think your disability has twisted your mind a little bit.
You do not need to take my word on all the failings I've described above. You can verify them for yourself. Pick up a copy of NaturallySpeaking, purchase a real microphone instead of the piece of crap in the box, install, train, use after throwing away your keyboard. Then you'll get a very clear example of just how inaccessible your working set of applications are. Then you get to make a choice about whether you are going to do something to make systems more accessible to speech recognition users or not.