Translate the following English sentence to French:
"We can hardly be surprised that certain individuals, at best psychologically weak, at worst deliberately criminal, lose all their moral principles and commit reprehensible acts not because of any geographic remoteness or cultural difference, but because, in their own countries, those moral principles have disintegrated."
Comment s' étonner que certains individus, au mieux psychologiquement fragiles, au pire consciemment criminels, perdent tout repère et commettent des actes condamnables non pas par éloignement géographique ou différence culturelle, mais parce que, dans leur propre pays, ces repères sont brisés.