Why did the church become so important in Western Europe?

the start of the Middle Ages, all Christians in western Europe belonged to a single church, which became known as the Roman Catholic Church. After the collapse of Rome, the Church played a vital role in society. ... The Church provided leadership and, at times, even organized the distribution of food.

The Roman Catholic Church emerged from the fall of Rome to play a central role in daily life in medieval western Europe. The Church Takes Shape​ More than just a religious institution, the Catholic Church was the center of community life and acquired great political and economic power.

the difference is that white collar worker performs skills like worker as a scientist or well blue collars do physical work and they do services like being a cook.

pepin the short[a] (german: pippin der kurze, french: pépin le bref, c. 714 – 24 september 768) was the king of the franks from 751 until his death. he was the first of the carolingians to become king.[b][2]

the younger son of the frankish prince charles martel and his wife rotrude, pepin's upbringing was distinguished by the ecclesiastical education he had received from the monks of st. denis. succeeding his father as the mayor of the palace in 741, pepin reigned over francia jointly with his elder brother carloman. pepin ruled in neustria, burgundy, and provence, while his brother carloman established himself in austrasia, alemannia and thuringia. the brothers were active in suppressing revolts led by the bavarians, aquitanians, saxons, and the alemanni in the early years of their reign. in 743, they ended the frankish interregnum by choosing childeric iii, who was to be the last merovingian monarch, as figurehead king of the franks.