[hakunin]

This can apply to anything. Why care about how well a shovel is built if all you care about is a hole in the ground. Why care about the quality of the hole in the ground if all you need is laying foundation that can hold a house… Why care about a neat kitchen, if all you care about is a cooked dish. At every layer there are multiple sets of end users. Code is used by programmers and businesses as the source of truth and automation. Just like shovels are used by people who dig with them, not just customers who need holes.

If your point is nobody will ever need to read the code, there's a reason why truly self-driving cars aren't happening yet. We will need human intervention as a failsafe, probably for a while. And humans have been known to care deeply about way lesser things than reducing friction for handling a failure contingency.