Traffic Patrol Officer Question:

Nowadays, there are not many people doing something bad for society because they have their conscience guided. Focusing on such things as conscience or loyalty will not help you with this question as such things have become rather vague in daily life and if someone wishes to do something for the society, practical actions would be better than just words.

For example, to answer this question, you may tell the interviewer that you want to become a police because you always dream of protecting the innocent from bad things and those evil or bad things will never win over good things because there are a lot of people like you. If you were a police officer, you would fight against them.