I think perhaps they do. I would say I'm more on the lower-functioning end of the spectrum. Despite being intelligent enough I can barely make eye contact with people and have no friends where I live, and have never had a proper romantic relationship.
I went to an Autistic social group and definitely felt excluded for having more support needs than the others. I often feel left out on Twitter too. I have 34 followers there, mostly Autistic people, but very rarely do any of them reply to anything I put on. Most of them are more successful than me, have more friends, more of a life, etc.
It often feels I'm pissing in the wind, getting nowhere.