Longevity lulls into a false sense of security.

In the days when you were unlikely to reach your three score years and ten; when infant mortality rates were through the roof; when you were under constant threat of losing members of your family to disease, people were considerably more aware of their own mortality and acted accordingly.
The more distant death appears to be, the less spiritually aware the population becomes. The problem is that dying older does not mean that death has gone away.
What happens after death used to be so much more of an immediate issue. Today, with people surviving on average until their 80s, there is no real incentive to be 'right with God' unless some crisis occurs. This is one of the downsides of living in a modern society.
The trouble is, that after 75 years or so on this planet, it becomes increasingly hard to shed the bad habits of a lifetime.