Yes, it is an extreme example, but if your application(s) makes your company millions of dollars or euros, even if you are in a business that is not heavily regulated [1], mistakes or unavailability can cost a lot of money. Even if your company is not that big, mistakes in a crucial application everyone uses can cost time, money, even expose the company to legal trouble. "Self driving" coding in these situations is not ideal.

[1] Even if your domain is not traditionally considered heavily regulated (military, banking,...) there is a surprising amount of "soft law" and "hard law" in everything from privacy to accounting and much more.