To my knowledge, it mostly comes down to transparency. So that you know exactly who owns what in your area. The idea being that the public has a right to know how much of their region actually belongs to the citizens who actually live there.
Sadly it hasn’t done us much good because companies like Blackrock and Vanguard and people like Bill Gates are buying up all the homes and farmland and the public isn’t doing much to show their displeasure with this despite it being public information.