Your question doesn't make sense
It took a country that was already in economic shambles (Germany), and forced them to pay heavy reparations, which would eventually lead to Hitlers rise of power.
The main reason is that city states were becoming increasingly wealthy
The nation was not unified and every city was a state for itself. This meant that they didn't have to think about the rest of the land and they focused on trading and getting richer and richer. The rich lords and ladies liked art and employed numerous artists to do commission work or to make the state a better place or similar things.
