Asperger96 wrote:
They are the undiagnosed ones
There is no reason to assume that undiagnosed autistic people are any more likely to be successful than diagnosed autistic people. There are people on this forum who want to believe this and sometimes base this wishful thinking on the theory that if you do not tell children that they are autistic they'll have better chances to succeed because they will lack excuses to fall back on. This is at best pseudo-science and mostly just ableist nonsense.
Economic statistics for autistic people in multiple countries are quite well supported and easy to look up, and the sample sizes are large enough to keep the margin of error fairly low. There is no untapped hidden undiagnosed population of successful autistic people. Not in the real world.
In this case, since Fnord also answered, he offers that explanation for himself, not for everyone, and I do not think he is wrong about his own life, and there are probably others like him. I simply disagree that this is actually a normal outcome. As a counterexample, you have those like Temple Grandin who knew from childhood, but had extensive support and came from an economically privileged family. There are many reasons people can succeed or fail.
In my case, I had no diagnosis and thus no reason to think I was disabled, and I pushed myself as hard - even harder - than anyone around me and the results were losing all of my jobs and dropping out of college because I couldn't keep pushing myself for more than a few months. Never mind the other problems I encountered because of social impairments and other people's reactions to them, as well as dealing with daily, often intense sensory overload. Everyone's different.