The hand of Midas is probably the most dangerous treasure out there and this is due to the power that it has to turn everything to gold. Even after his death, we preserved the hand and the mummified remains of it are still able to do this. It actually rests in a gold case because it turned from steel to gold when we placed it in there. The main problem is that if this hand ever made into the outside world it would probably be used to create excessive amounts of gold and this would devalue the metal entirely.
This is the reason why we decided to hide it from public view and make sure that no one has access to it ever again. That is unless the need for more gold requires that we use it to create gold out of the most useless materials possible. The hand of Midas is hidden and heavily guarded with many other treasures.