It's all how a culture values life. In America, it's not uncommon for a motorist to hit a motorcyclist and simply say he/she didn't see him which absolves them of some, if not most, responsibility. In Japan, if you do that, it's an admission of guilt and off to jail you go. The way they see it over there, if you have a license to drive a car, you are held to a strict standard of accountability that comes with the license.
All the best,
Nonoise