The church played a very important role because it was "all around" in medieval times. On the level of almost every village there was a church and a priest which helped spread the word of the christian god. Through this, almost every person down to a villager somewhere in a village in Europe was able to come to church where people gathered on Sundays and hear new information and educate himself on various things related to faith and religion.
Sorry Rjune....but there is no question to be answered.
The modern American economy traces it is rooted in the quest of European settlers moving to groups for economic gain in the 16th, 17th, and 18th centuries.