An executive that has a tariff placed by congress on his competitors is a crony capitalist. Their days of having to compete for business are over once they get this advantage. They can make more money without having to do anything to improve, become more efficient, or bring down cost. I'm pretty sure they prefer this approach. It is not like they prefer the no-tariff, have to compete with competition way so they can greedily clean up. It's the opposite. If a boardroom boy is greedy, then he loves tariffs.
If getting employment down from 25k unskilled to 7k skilled is a bad thing for putting all those people out of a job, it cannot simultaneously be an example of how the company is so much better now that they've become more efficient. If they're a lot better now than they were before, then getting rid of all the unproductive was a good thing. That's how they became better. If they hadn't done the layoffs, they would still be inefficient.
Spending a trillion bucks on infrastructure and then telling the companies who are going to do the building that they won't have to compete for the business is a prescription for disaster for the taxpayer.