As engineer I find there should be a baseline.
I also don't expect weekend cooks to keep a Michelin restaurant running.
A software engineer is like a plumber you link up lots of small components, weld them together and then the data flows through the application (at least that is the idea).
However, if you work with the backend, you need to worry about data access, any concurrency issues, performance problems. Generally tradesman follow relatively simple guidelines, which may change at a slower pace....tech on the other hand changes insanely quickly.
I think it's hard to find a good analogy because software is an incredibly organic and artful thing. It can be highly technical but also playful.
I think it's a matter of finding the right people for the right job, and making sure those people have some skin in the game. If there is no incentive to write quality code, or the dev's don't care to write quality code you probably won't get quality code.
Then again maybe we still haven't come across the correct tools for the job that make it easier to produce quality software.
The fundamental architecture of a car has been relatively the same for many years now. To a lesser extent we see that in computer hardware however in software it so easy to invent new tools that maybe the good tools get lost in the mess of it all.
Programmers want programming to be about ideas, but many/most problems are applying patterns to process.
Developer = Mechanic
Computer = Car
Make = Language
Model = Platform
Year = Version
A mechanic is licensed by ASE to work on cars in the USA and there are 50 different certifications [1], depending on the type of car/truck/bus. I don't want to see software development go this route, where developers have to get multiple certifications to prove they can work on a language or platform. It would be draining and force devs into silos, even more than they already are. And as the parent comment mentions, software is an "idea" problem and not a structural/foundational one. Unless your developer is a certified genius, what good is his certification?
[1] https://en.wikipedia.org/wiki/Automotive_Service_Excellence