Exactly. Civil Engineering does this better, I think. In a civil engineering project such as a bridge, the requirements may be written down by the customer, but the engineering design of the bridge is entirely the responsibility of a single architect. You can pretty much bet that the city council who bought the bridge doesn't know a thing about physics or engineering, so if the bridge falls down it has to be the architect's fault (assuming that it was built according to the plan). This gives the architect the power to say "no" to the customer.