Because he WAS an arrogant stupid dangerous fool.  He was too ARROGANT to bother with collecting information from locals.  Too STUPID to figure out the consequences of his actions.  And even if we ignore the possibility that he was the vandal who trashed the survival cabins and supplies in the area - he placed the unwanted and unnecessary responsibility on others to haul his rotting carcass out. 

 :The world is a better place with him gone.  Stupid SHOULD hurt.