There have been many many threads about this. It's a valid question. My personal answer would be that God allows us to live in this natural world in all its ways without His constant supernatural intervention. I think if He were to intervene every time something bad would happen to someone, it would get to the point where we wouldn't be fully humans anymore, just puppets without purpose and without the ability to learn, love, and feel emotions.
"Of course, everyone will claim they respect someone who tries to speak the truth, but in reality, this is a rare quality. Most respect those who speak truths they agree with, and their respect for the speaking only extends as far as their realm of personal agreement. It is less common, almost to the point of becoming a saintly virtue, that someone truly respects and loves the truth seeker, even when their conclusions differ wildly."
-walsh
-walsh