Why do people pray after a tragedy , to a god that did nothing to prevent the tragedy ?

It always amazes me when people talk about how God helped them with something trivial, yet for some reason he's turning a blind eye toward the suffering of sick, starving, and impoverished people, kids who are abused, raped, torn from families. What? Did those children not pray hard enough for food? Were they just too insincere when they begged for mercy when they've been raped and tortured? Such ego among the devout that says finding car keys is the work of an all-powerful, all-loving, all-wise, all-knowing God, yet the misery of hundreds of millions of people is part of some "divine plan." Fuck the divine plan.