Is there any proof that the liberal perspective is able to produce software of sufficient quality? All the safety-critical development standards take a very con

Is there any proof that the liberal perspective is able to produce software of sufficient quality? All the safety-critical development standards take a very conservative approach, especially in respect to development speed. A program that executes and performs some I/O is a very very low bar to pass. The next step is not being ready for wide-scale production, in fact the IEEE Software Engineering Body of Knowledge aims to define the many steps required for that and it's a lot of them. Developing by the seat of ones pants is fine for personal projects, but not for publicly used software. And why should what developers "want" be the main criteria that should be used to choose programming languages? It's certainly important that developers are able to extract some satisfaction from their work, but that doesn't mean we should sacrifice other important goals just for the personal comfort of developers.