Karma is complicated. It exists on the individual, societal, and global level.
People are affected for a variety of reasons. To understand the karma of a person, society, or world, which is extremely sophisticated, one must awaken within the internal worlds or speak with Anubis, the head of the law.
For thirty years I sought God. But when I looked carefully I found that in reality God was the seeker and I the sought. -Bayazid al-Bastami