What people tend to forget or dispel is that everything in society is based on trust. You can of course try to test every new fact for soundness with all the facts you already know, but fundamentally you need to trust something and in the end it just becomes a function of how much you trust the messenger. Undoing trustworthiness is a big issue and will lead to a lot of unrest in society.

The reason you are not murdered today is not, because murder is hardly punished or hard to do, it is because most people aren't murders. If they were, we wouldn't be able to suppress it with force, we would simply live in hell.