What does this mean?

It was an accident.  For the 3rd time in Hyderabad, someone rear-ended my bike.  This time the scene was a little messier.  My bike hit the car ahead of me after it was rear-ended.  A glass piece broke in the car.

The deal here is that I fell on the ground so it was obvious to the car guy that I must have been the one who hit him.  The guy who helped me get up was the one who hit me, it seems.  I knew it only after he told me that.  He helped me get off the road so I'm pretty sure he didn't lose his balance after he hit me.

Now, the car guy says I and the other motorcyclist should pay him for the damage.  He was asking us a few thousand rupees, which neither of us were willing to pay.  So we went to the police, who made me pay him 1500.  (I don't know how much the other guy paid.)
When I handed my share to the car guy, he started arguing with me that I was paying a lot lesser than I owe.  He started telling me how generous he has been: "You both together pay me 4.8k, and I, who doesn't have to take any responsibility whatsoever, will pay the remaining 1k from my pocket."

My opinion is that since this is an accident everyone takes equal responsibility, like grown ups.  So I told him he has as much responsibility as I do.  He didn't like that.  Anyway, I digress.

The other biker told the police officer that he is earning only 6k per month so he cannot pay pretty much anything for the loss.  I thought about it.  What if the biker had decided to take off after the accident?  I would have told this car guy that it wasn't my fault, but being the dumb thing unreasonable man he is he wouldn't have believed me.  I would have thrown the money on his face and walked away.

The biker, like a responsible adult stayed on the accident spot even though he could have simply gone off and no one would have known anything.  He was harassed by the police and he had to pay money for the loss.  Why did he do that?  Police, who should have filed a case and made the insurance companies pay for the loss threatened this guy and made him pay from his pocket.  I didn't have the balls to talk to the police and tell them to involve insurance companies in the scene.

Maybe life is not a courtroom.  Maybe you cannot accuse only one party for what happens.  Maybe there's no point in talking about right and wrong.  But what does the incident today mean?  What am I to write on my notebook about this incident?  Only thing I can say is that it was not very pleasant.