I think Spectrum Disorder (of which I assume is what we're actually talking about), is made up of a double-spectrum that acts as a cost-benefit weight for the disorder. Oddly, low-functioning autistics are included in the spectrum, but aren't as highlighted. I'll explain.
Essentially, what I see is two different spectrums—gradients, if you will: One is the degree in which the person's intelligence and other factors are displayed, and a second in which the inhibiting factors are grouped into a generalized array of sub-spectra. I'll use myself as an example: For me, my intelligence quotient was systematically graded at 128 at 8 years old; along with this I do have a leniency for self-absorptism and often go out of my way to further it. Positive-negative, right? As for the second spectrum I find myself largely neutral to it; when I was younger I would often have temper tantrums and would always be breaking the rules where I could (this has since passed). All of that has balanced itself to pretty much zero, and the balance in my spectrum disorder is found in the positive-negatives mentioned earlier along with some added traits that are simply in my personality.
For others, the case may be where they have an above-average rather than super-high IQ, and exhibit less self-serving behaviors and actions. I imagine that possibly the second array may be independently balanced from the first, but I'm not entirely sure. In low-functioning autistics (the mute ones and such), their brainpower is often off-the charts but is counter-acted by the fact that they have next to zero socialization skills. Then again, they may possibly on a different sub-spectrum that functions in a similar fashion as the aforementioned high-functioning subspectrum, and I realized that this is the general medical consensus.
To get a picture of the levels of spectrums, here.
Neuro-typicals
> [insert standard human categorization hooplah here]
Neuro-atypicals
> Low-functioning
>> polar low-functioning
>> nonpolar high-functioning
> High-functioning
>> polar high-functioning
>> nonpolar high-functioning