They should, but they do not. Whenever I see "should" in a sentence I think: why is this not how things are? What are the incentives? In this case: who is the

They should, but they do not. Whenever I see "should" in a sentence I think: why is this not how things are? What are the incentives? In this case: who is the person deciding what gets built? What are the consequences for being over budget? (Calatrava I am looking at you).