What implications would the discovery of microbial life on Europa have for future space missions?

Europa, one of Jupiter's moons, is considered one of the most promising places to search for extraterrestrial life within our solar system due to its subsurface ocean beneath a thick layer of ice. Scientists speculate that this ocean, rich in chemical energy and potentially warm enough to harbor life, could be home to microbial organisms. Should future missions, such as NASA's Europa Clipper or ESA's JUICE, find evidence of microbial life, what would this mean for the planning and ethical considerations of subsequent space missions? Such a discovery could revolutionize our understanding of life in the universe, influence the design of sterilization protocols, and spark a debate on the ethics of contaminating other worlds with Earth-originating life.