How is it that the Egyptian Mummies are unearthed and it's called science? It's still grave robbing.?

Just recently,I read some horror stories,that involved Grave Robbing,Indecency against a corpse,disruption of the dead,etc.One was of someone disinterring bodies,and taking articles from Civil War Soldiers long gone.Even more disturbing was the latest,most disgusting news imaginable.A corpse was exumed,the skull removed,and it was used by two men as a vessel for smoking marijuana.They called it a "bong" This is NO JOKE,search for the story anywhere on the internet.Acts against the dead,are treated as they should be.Serious charges are laid,and it is most certainly viewed with disdain among the vast majority of the living.How is it then that I watch doentaries that constantly deal with Archeologists,and people from the Society of Egyptian Antiquities painstakingly,and dilligently unearthing the ancient remains.Often they're exuming members of Royal Families.Could you imagine what would become of someone who desecrated the grave of a member of the English Royal Monarchy for example?