Time for a bit of a full on philosophy post! I posted this comment over on the three pound brain blog...
In terms of junkies, I went to a lecture by Robert Winston once, where he suggested that petrol isn't too expensive, it's that petrol is too cheap. That we are addicted to petrol.
And people, lots and lots of people, do aspire to be this type of junkie.
Futher on the car, what of the tragic reports of people backing over their children in the driveway? Isn't it psychopathic to crush your children under several tons of weight?
"But it was an accident!"
But it'll always seem like an accident, instead of seeming a madness. That's the creeping normalcy. No one wants to become mad. But what happens when you encounter a new situation no one has ever encountered before? How quickly would you be to say you've entered a state of madness, Vs how quick would you be to say you caused a tragic accident?
Really accidents only happen because someone is ignorant of the future consequences. How quickly can an ignorant person suddenly conclude they know enough to know they haven't entered a madness? Very quickly, sadly.