In the introduction to his book, Sedlacek uses the Czech legend of St. Prokop (who harnesses the devil to plough his field) as a metaphor for a commonly-held concept of the "invisible hand". He suggests that, like St. Prokop, civilization harnesses the evil of greed to accomplish "good" economic results. Based on what you have read here, does this argument make sense?

This argument makes sense.

Explanation:

The invisible hand is a concept associated with the economy that refers to the ability to generate economic (or social) goods through an individual who works for himself and generates those goods in a way that these goods are available to society unintentionally, since you don't care about anything but yourself.

Taking into account that this concept states that some people can generate good situations for society through a selfish and evil reason, we can agree that the argument shown in the question above makes sense.

in our power to make a world happy - to teach mankind the art of being so - to a character hitherto unknown - and to have, as it were, a new creation intrusted to our hands, are honors that command reflection, and can neither be too highly estimated,