This article reminds me of another from the same website about the link between having SA and actually being more
empathic than most people.
Sometimes I notice this at work... some of the loners and more reserved people are very talented, and more effective for some tasks, like the ones that require a lot of detailing.
But at the same time, I think it doesn't mean they don't care about others. They're just more focused and may actually be more empathic than most people think, it's just they have a hard time dealing with their feelings.
Some of them may have been bullied for being smarter than other kids and have this mindset like a confort zone.