It is the "Great Chain of Being"--derived from the thinking of Plato and Aristotle-- that recognizes God as the ultimate authority in government and law, and of course over all humans and animals.
There are numerous things that have turned out to be beneficial from the Crusades, such as:
- Trade with the East
This led to the introduction of lot of new things in Europe, food, spices, materials. That resulted in development of large, strong, wealthy trade cities, and it prompted a big rise in the European economy.
- Technological advancements
The technological advancements from the Arab world and from the Far East changed the course of the European history. They managed to learn how to make better weapons, built better ships, use the magnetic compass, and make better maps, eventually giving them advantage in colonizing the world.
- Rediscovering of the ancient Greek and Roman texts
The Arab world manage to preserve some of the ancient literature from the Greeks and the Romans, and they were reintroduced in Europe. They were very influential later in history as they managed to prompt the social changes in Europe that led to the Renaissance.
The modern ages were not very wealthy and the Middle Ages had people with more money
