That would be true if said intelligent people were optimizing exclusively for the metric you're looking at right now. In reality they usually are not, as they are themselves stuck in a system where their incentives are to optimize for things other than their supposed mission statement.
The world is full of tangled messes where everybody is acting with respect to their own local incentives and everyone is worse off as a result
Even the most intelligent person in the world will consistently make false deductions if she starts with false premises.
Ideally there is a process of incorporating real-world results and revising one's beliefs, but that process seems to have pretty much shut down in favor of strict political orthodoxy.
Intelligent people correct their actions when they see the results. It is fair to say that there is enough information about "unintended" results by now.
The world is full of tangled messes where everybody is acting with respect to their own local incentives and everyone is worse off as a result