As an example, an individual who likes tinkering with weapons instead of socializing may come up with a novel weapon modification. That individual may die earlier than average due to lack-luster social skills, but the improved weapon makes the tribe thrive and grow, spreading the gene that made the weapon-obsessed individual, which was probably already in the population.
> that negates the evolutionary advantage Unless it doesn't.
Not only are you speculating, but you're making blanket statements within your speculations.
"would that be considered depressed?"
The article refers mostly to the absence of anger from the adult diagnosis of depression, and talks about how it may be valuable to include it. To be considered depressed, I would say that the individual would probably have to fit other metrics for the diagnosis for depression as well.
"Where do we draw the line"
We don't, really. Mental health is a complex spectrum of behaviors. Perhaps Jobs was depressed, perhaps he suffered from some un-diagnosed OCD or he had symptoms from any number of other known psychological issues. Maybe he just learned to be a dick early in life and that was part of his personality. If we pick apart peoples personalities and compare them to symptoms, we'll find a fit for everyone, but that isn't really helpful anyway.
I was diagnosed with OCPD a couple years ago, and after knowing all my symptoms and thinking about Steve's personality, it makes a lot of sense. The thing that sealed it for me? Steve struggled with food and eating disorders throughout his life. This is a common trait of people with OCPD and people struggling with perfectionism.
How about "just a low tolerance for what they perceive as bullshit"?
It seems many such people perceive things like manners, respect for other people, and anything that doesn't push their personal current priority as "bullshit".
Speaking from experience, the line is fairly easy to draw. I get benignly irritated at bullshit all the time, and the anger and irritation that comes with depression is, internally, _very_ different. It's not merely "this stuff is aggravating", but rather "this triggered my fight-or-flight response, and I chose fight" — and reacting like that to even small things.
Maybe, but not necessarily. Just like how being sad doesn't necessarily mean you are depressed. It is feasible Jobs could have improved his day to day life and handled his anger better by seeing a mental health professional, but it would be irresponsible to have armchair psychologists posthumously diagnose him with something.