Suffering is meant to teach a lesson. Whether the lesson is meant for an individual, a group, a culture, a nation or a planet depends on the suffering. The nature of suffering is that it shall continue until the lesson is learned.
Suffering is in the grand scheme of things. It is meant to teach a lesson. Sometimes it takes a lot of repeating until the lesson is learned. Both good and bad people reap the benefits of the sunshine. Both good and bad people receive rain for their crops. Chaos and disaster befalls both the good and the bad. The difference in the aftermath of tragedy is the lesson learned or not learned.