> use case: enterprise app are at the intersection of real life and the virtual world: the rules are messy, illogical and have a baggage of 20/30+ years. Thus they cannot be changed at all.

This is in my experience exactly the problem. They can be changed and should be changed as it would save everyone boatloads of time and money. Engineers need to advocate these business process simplifications, and managers need to illustrate the ROI of making such simplifications.

One has to challenge nonsensical requirements: it’s a critical part of engineering.