There is an insidious blandness in people about anything other than sex, power or money. These are the three gods of modern life. Unless something's affects people's bank accounts they are guaranteed to Lose intest after after while.
Then they become numb to things.
This can be seen in people's response to shocking world news. Forty years ago ther would have been a huge outcry in response to the image of children starving in Africa.
Now no one pays any interest.
So you mention the Phoenix lights to someone at work and they reply with "oh that's interesting ; I must get a new set of tyres for the car".
It's all blandness you see.
I believe zoser is correct, modern society in general has become desensitized.