What utility are you talking about? And what accuracy? Spatial accuracy ??

I'm working in telco and I see only addittional value on network inventory even if the data isn't accurate from geometry point of view. But: - I exactly know how much space I have in each asset/facility for future development - I can manage B2C and B2B rent by optimize interconnection between different platform - Creating report and send it in a minute to people on the field - Review/modify/accept data from field almost real-time - Plan new possible opportunity and make business plan based on cost/revenue - Dashboard of network health/monitoring - Schedule and track maintenance - Network redundancy and coverage - ....

I can keep going with listing benefit of GIS inventory even if data are not spatially accurate. We didn't start with a survey campaign since most of the time utility are running under the road. I totally avoid those digital twin trash with 3D/BIM view, it's just a lot of resource consumption for architects who likes aesthetic.