I guess that structural code requirements are more "formal" than electrical code requirements.

You submit plans that show the specie/grade of materials along with the layout and the fasteners to as much detail as desired.

The AHJ looks at the plans at permit time and issues a permit to build to those plans. The inspector compares the plans to the actual structure and decides how he wants deviations from the plans handled - change the plans, change the structure, or ignore the differences.

I understand that most of the time electrical plans are not submitted and when they are they are not as detailed as structural plans.

It seems reasonable that when detailed electrical plans are submitted that it is the obligation of the inspector to ensure that the permited work was done as permitted.

I guess the simplest example is if the permitted work indicated wires in conduit and the finished work was NM cables. Even where both are allowed, only one was permitted.

I would have problems with that.