The upper class/the common people thought that the common man were not not good enough to running the country. The banks made the upper class richer. So they think the National banks should stay as it is. The National bank only really help the rich.
Some examples of how a National Governments work are:
1) establish foreign policy, treaties,etc.
2) declare war
3) coin money
4) establish the army and/or navy
1441-1460AD
Hope this helps.