In the United States we are more than privileged, we are extremely blessed but I don't think this makes us any more blessed than those who don't live in our country. We're able to worship in most cases without fear of persecution however imagine living in a country that forbids your ability to praise, worship and teach Christianity, imagine having to live in secrecy, hiding your bible because if being found it would mean death. Here in our privileged society we also have access to somewhat decent healthcare but imagine living somewhere it's not readily available or affordable and if becoming sick was a death sentence. These are the things I think about, why do some have and some don't?
The truth is God reigns. I don't believe think that He causes pain or darkness without purpose. I believe He uses every situation whether it's persecution, sickness or any of life's seasons that causes the light to dim into dark for the purpose of worship and for praising Him. Jesus hung on the cross for us not to question the failures of society but for us to live freely in the comfort of knowing Him and though trouble may happen and darkness may fall, we have to remember...there will always be day 3.
Read: Romans 8:32, John 11:4