> So, we don't need an electrical code to enforce correct wiring.

For an analogy to work, its underlying elements should have a relation to the target. Your analogy is not in the same universe. For electrical work, there is a baseline of materials and practices which is known to produce acceptable results if adhered to. For software, there isn't. (Don't tell me about the Space Shuttle. Consumer software doesn't cost tens of millions and isn't written with dedicated teams over the decades.)