The decision by the English clergy to become Protestant and recognize Henry VIII as the Supreme Head of the Church of England had several benefits. It allowed them to break away from the authority of the Pope and the Roman Catholic Church, giving them greater control over religious matters within England. This move also allowed the English monarchy to have more influence over church affairs, strengthening their political power. Additionally, the dissolution of the monasteries and redistribution of their wealth provided economic advantages to both the monarchy and the clergy who supported this shift.