I was tested last year and diagnosed with minor autism and a top 1% IQ. In my career it did cause a kind of friction, but not "attitude". The friction came about when I instinctively fought for the ability to work in the manner that I needed in order to function at a high level. But I was always easy to get along with otherwise.
Maybe the distinction is that autists will cause friction defensively whereas if someone is being a jerk, that's its own thing.
High functioning autists must have other traits which blend-in into their level of autism. Take a look at Steve Jobs... clearly autistic but had a drive and charisma in order for his level of autism to be (for lack of a better word) supercharged.
I dunno if Steve was autistic or no but there's a subtype of people who develop a "special interest" in reading, influencing and manipulating people and get quite good at it. They study people carefully - each encounter is a new way to find out how people tick, their motivations and levers. They tend to have unusually good memories of specific encounters and conversations. They can quickly and reliably size people up. You need many many encounters to build this kind of intuition up, so there are specific professions they cluster in that give them lots of practice, cops / detectives, sales, even retail - but you need lots of (ideally non-trivial) interactions to supply the intuition pump.
But that's not how it works. It's a spectrum.