Scientists studied a native tribe in South America whose people have been dying prematurely for generations. After thorough investigation, the cause of premature death was determined. The disease was transmitted by an insect that lived in the walls of their adobe homes.
This knowledge presented several options. They could move to another area where such insects did not exist, tear down their homes and rebuild them, use insecticide to rid their homes of the bugs, or, continue as they have and die early. Surprisingly, these people have opted to remain as they are and do nothing about their problem.
Many people behave similarly. They know how to be saved, but they opt to remain unchanged.