You seem to contradict yourself. You start off by noting all the non-technical constraints on a software architect and then say it's nothing like a construction

You seem to contradict yourself. You start off by noting all the non-technical constraints on a software architect and then say it's nothing like a construction architect by noting all their non-technical constraints. They seem to be very similar - balancing client desires vs. real-world constraints, because no, it is not the case that everything is possible with regards to software architecture. Software architects have to contend with processing constraints, memory constraints, networking constraints, process management and coordination constraints, and organizational constraints. Depending on the industry vertical you're in you may even have to contend with regulatory constraints.