your two statements can be true at the same time: I do not need to look at the code because I know exactly what it does.

do I care for every snippet? every call's signature? no I do not.

do I understand what it does 100%? yes, because I directed it to be built like that.

I don't get people like you. "care about their craft" - what craft? my job is to make ideas into reality, how I get there is irrelevant. this is what I get paid for and this is what gets me satisfaction.

I've always disliked spending weeks arguing with people about every little detail and having an ideaological war. From the end output most of the decisions that people who "care about their craft" care about are utterly irrelevant.