My job as a librarian was basically offering advice and providing leads for further information, but you said jobs don't count.
When my friend was buying a house, I tagged along because my drafting background gave me some useful information as a preliminary home inspector. I'm able to see big obvious-to-me structural issues or design and layout flaws a bit better than most.
Here in the PNW, a factory 4WD is helpful for snow and bad back roads, but four wheel drive still does not mean four wheel stop on ice. I would even trust most factory trucks in driving up logging roads with some ruts and bad bits. But they have no place on serious trails.
Advice in job functions count, I was just more interested in hearing about people's interests rather than their professions.
There's some capable four wheel drives out there, but capable for what is the question as you point out. Most are fit for purpose meaning on road and the odd gravel road or hard packed beach but in the rough stuff...nope,that's why there's a very healthy after market industry.