Well most of the concepts in these documents were prevalent in previous society's. Representative democracy in Athens. Basic inalienable rights was in the English Bill of Rights. But a big change was the checks and balances of government. i.e how the president can veto congress, the Supreme Court can overturn a veto, and Congress can impeach Supreme Court judges.
The only Supreme Court of these cases that took place in 1904 was (E) Northern Securoties Company
I believe the answer is: A.Smith knew that the invisible hand of the market was not concerned with the health of the laborer.
The power of invisible hand in the market only care about the power of supply and demand which would determine who will obtain the most wealth. Even if the process could disregard the wellness of many people, as long as the demand is met, consumers wouldn't put too much thought on the laborers.