While I think more activists need to involve with traditional ASD research, this is not a route to improved understanding in the short run as ASD research only deals with how to cure ASDs, and how to treat them, and not with society which is the cause of much of our problems today. Similary, one could also get involved in practical help with people on the spectrum, and as an ASD person would be much better suited for this, but again, this won't make much of a difference apart those you work with.
Instead, I think there are three major options in order to make a difference: Start research projects around neurodiversity, and get them published, write a book about yourself, and start doing lectures to educate people about how you work, or involve in activism of some type.