On a slightly related note, and please forgive me if any of this comes over as disrespectful, as I really do mean it in a very positive way, but I had the privilege of attending a seminar about recruiting people that struggle to find employment because of their health diagnosis. It's an incredibly large, undertapped and undervalued section of society.
A big focus was on people with Downs Syndrome, and the initiative was prompted by a CEO of a large organisation whose own child had it. Initially, they were taken on in roles that were mundane and repetitive, and they flourished, and pretty much had to be told to go home, or they'd have kept going all night. It was soon realised how many other roles they could be employed in, and every employer couldn't speak highly enough of them, and other staff felt they had gained so much from the experience, and morale was raised immensely.
I have experience of working along side people with a variety of physical disabilities, and found their approach to life, work and problems inspirational, and it put many of the more able bodied colleagues to shame.
It was also estimated that if done correctly, the adaptations are minimal, and are more than made up for by an increase in productivity, especially if the freedom and spending power of those individuals was costed in.