I believe that he touched everyone who came to the Island. I believe that at some point, every number/name on the cave/lighthouse was a candidate, and they have slowly been whittled down throughout the years. Now there are 6 left.
Ok, ok, bear with me here- so why, then, were the 'six' all nice and packaged up in the string of numbers well before the rest of the candidates, who came with them at the same time, were brought to the island?
 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		