Life is very unfair, but after all life is just meaningless suffering. Everything is determined by random factors, chance and luck. Many people are disadvantaged through no fault of their own. All human beings are selfish, they would do anything just to make themselves feel better. We are only here because of evolution anyway, there is no purpose to any of this. You could say life is just one big distraction from death, all that humans are doing is waiting around to die.