My view is that people act the way they do and without boundaries because they don't believe that there is a God who care about them.
So they engage in survival of the fittest warfare but that is where the problem lies. It makes the term rule of the jungle comes very much alive causing much unnecessary evil.

For Christians who found comfort in knowing that God will provide all their needs, they don't have to feel insecure to engage this rule and step on other people's toe to get what they want. And it's also true that not every Christians have this kind of faith. But those who do, they live life with lesser stress.