You and I would likely throw those glass shards away but I doubt any archeologist would. My concern is about how we stop such 'vandalism' in the first instance

You and I would likely throw those glass shards away but I doubt any archeologist would. My concern is about how we stop such 'vandalism' in the first instance (especially so culturally significant objects such as those found by Howard Carter). We might do so initially, say for several hundred years, with current strategies with minimal loss but I think over several millennia our systems would fall apart. (At present, we consider those objects to be of great importance, in two millennia values might be entirely different.)