Why to save time where we shouldn't ?

I was going to office at ten minutes past nine;as the signal turned green, all atmosphere was filled with the sounds(of horn ofcourse) a race started, people were banging horns as if some sunami has come and they need  to rush to saves life.
I asked to myself what is this pushing for? How much time will be saved banging horns.
After all these are the people who will spend time in bed while getting up,cling to newspaper, spending countless minutes over tea gupshup. Why to save time where one shouldn't? .

Even before plane could be on a complete halt, ignoring the message of sweet voice, people started to switch on the mobiles, a few stand and started opening overhead compartment. What for? Anyways you will have to wait for checked in luggage. Have patience dear.

Having waited for 15-20 minutes for food to be served and then spending an hour enjoying delicous meal, we become restless once we have request for it.Started eyeing waiter for bill. Man what is you going to make in those two to three minutes. Anyways you will go out and have a final words before leaving.

I myself did these in past but now I don't try to save time where I shouldn't