Adding to that yli, it isn't just out of the financial purview of most Chinese, it is that most Chinese people do not live in Beijing or Shanghai, and so even people who are solidly middle class or well-to-do peasants, they're going to be limited by the resources available in their area.
Ever notice how non-wheelchair accessible most of China is? Beijing is better than most cities because the Olympics and the Paralympics came through, and so there was a big push for accessibility, but most of China is completely inaccessible for someone who uses a wheelchair. Schools for the blind and deaf are great -- but you have to have one near you. Mainstreaming kids with physical disabilities? Sounds good in theory, but if you're in a one-room schoolhouse in Qinghai and you have one teacher for grades 1-4, that teacher does not really have the capacity to serve as an aid for a child with disabilities. If you compare China to most developed countries in terms of pure resources available and allocated for education of children with physical/mental differences, the difference is tremendous. In the States, these people are protected by law -- public places HAVE to be wheelchair accessible, public school MUST accommodate differences, but in China, obviously, the situation is totally different.
As for conditions like autism, China's understanding of that lags so far behind the rest of the developed world that it is pretty shocking. In my son's kindergarten there were at least two or three children who were very obviously different. Their parents, however, had their heads completely in the sand and were convinced that their child would grow out of their condition. Most refused any sort of help, and were offended if you suggested their child had issues. One mother reluctantly sent her child (who flapped his hands, walked in circles, never made eye contact, and was barely verbal) to a local "training center" for autistic kids. He made huge "progress," but I think it was really a matter of conditioning him to respond in certain, socially acceptable ways. Not really modern therapy as we know it. Even my own son, when he was reaching 2 years old and hadn't started speaking yet, I wanted to get him evaluated and possibly placed in speech therapy, and outside of the major international hospitals, I didn't know where to even start. My mom has kids in her class (she's a Montessori teacher) who have relatively minor issues (like ADD), but the parents refuse any sort of help or to acknowledge that there is anything out of the ordinary with their child.
This is one of those issues that you could write an entire dissertation on. There are charities out there that are trying to help, and there are individual success stories (which is what I sort of misinterpreted your first post as looking for -- people who beat the odds somehow) but for most disabled people in China, the best they can really hope for is learning some kind of trade that will keep them employed or having a family committed to caring for them throughout their lives. Keep in mind that in China, even if educational opportunities exist, employment practices are still very discriminatory, and appearance is very important in any industry where the employee will have to face the public. So no, the outlook for most disabled people in China is not that great. I think individuals try and do what they can, but obviously a big push needs to come from the government so that disabled people can have access to the resources that would allow them to reach their fullest potential.