Honestly, they'd just be a human leader. They'd be a really wonkish one perhaps, but that doesn't mean they'd be saner, better, or more capable of making the reforms needed to go through. It probably actually means they'd be less able to work with the necessary political structures. I believe it's probably possible though, with an aspie with the right skill set, as social skills are actually variable with the spectrum despite the tendency towards social deficit, and I can kind of see the "Machiavelli wonk" aspie as a logical possibility, or the aspie with an unusual social strength being a possibility.