Why is the investiture conflict important?

The major importance of this controversy was that it augmented the degree of the conflict between the church and the state. This controversy was over who would get to employ bishops and other church officials. For this reason, secular officers wanted to be the one who will hire them. In the course of this controversy, Pope Gregory removed Henry. Henry, knowing this could deteriorate his hold on power, begged clemency and a negotiation was reached. This controversy led to more such fights between the Church and the state as both sides want to achieve power.