An engineer's job is to meet the customer's specification. Wasting its money to deliver something far in excess of the requirements is also a path to no longer

An engineer's job is to meet the customer's specification. Wasting its money to deliver something far in excess of the requirements is also a path to no longer working as an engineer. You've no right to be angry at the engineer because you wish to drive a semi truck down what you commissioned and budgeted as a footbridge.