Fear as a motivator

I believe fear does indeed work in some cases and often times motivates people to do thing. Fear is a great tool that ancient empire such as the Roman Empire often used to control people. An example will be public execution, which its purpose is to implant fear in people by making an example of a criminal. Fearing of cruel death, people tend to follow the law and try to prevent from committing a similar crime. However it isn’t such a great motivator because some other greater motivations can cause people to act. If fear is such a great motivator, why do people still fight with war and battles that causes great casualties? It’s true that countries try to negotiate with each other to prevent wars from happening, but battles and violence are inevitable once a single violent event erupted. Forgetting fear, people are willing to fight, risking their life, to protect their pride and carry on their sense of justice. They could also act due to vengeance or mental disorders. Fear is a strong tool that prevents one from acting a certain way. However, often times, the effect of fear as a motivator only lasts temporary when people forget the fear in it. For example, if people are not reminded all the time that more than a thousand people died a day in the world from car crashes because they didn’t wear seat belt, people often time forgets the importance of wearing seat belts while driving.