I would imagine most societies would look sort of like Germany or Japan, but the real question is which widespread social norms are directly or indirectly caused by endemic and widespread Neurotypical Disorder, as well as what those social norms would be replaced by
For example, I would expect the attached poster to not exist for various obvious reasons. But how do you think an autistic society would handle the indication of listening/attentiveness?
I mean, sure, but the OP isn’t about what kind of society would we choose to build, but about how we think things would have developed.
There would still be conflict relating to that as there are many autistic people who have the reduced capacity to work or outright cannot work at all.