Monetary policy allowed a small number of people to accumulate a disproportionate amount of capital. This capital allowed them to lobby and influence politicians to give them the right to build and own a massive rail network.
It simply would not have been possible for any group of people to build a rail network which traverses an entire country without serious government intervention. Think of the road/rail crossings that had to be built, bridges over rivers and other parts of the rail network which was built on public land... Think of the number of people who were probably forced by their local government to sell their land to build the railway on top... There was a lot of government intervention to make it possible.
And the amount of capital required to build such rail network could only have been accumulated as a result of unjust monetary policy. The complexity involved in operating a large enough enterprise to accumulate that kind of wealth would simply not be possible on a competitive level playing field to begin with.
On a level playing field, there would be too many profit opportunities for employees to quit and become competitors. There is clearly an artificial force holding everything together. That force is monetary policy. It used to be gold reserve debasement and now it's fiat money printing.