Does it really matter if you are dead, everyone who ever knew you is dead, and everyone that was told about you is dead? I don't believe the burial grounds sho

Does it really matter if you are dead, everyone who ever knew you is dead, and everyone that was told about you is dead? I don't believe the burial grounds should just be disrespected and all the bones dumped in the trash, but if 300 years from now scientist want to research an aspect of our lives to further humanity it seems like the dead shouldn't be trying to hamper that. I'd even be fine if the land was even used for building development so long as the removal process is similar to an archaeological dig and it is very easy for charitable groups to stake a claim to maintain the grounds and pay taxes on it. From an American perspective, I'm thinking of Native American religious burial sites, slave burial sites, and other sites that may have historical significance but were not allowed to be maintained properly.