Why would god choose to save him?
I can not say why. But from the story you will know that God saw his heart. He saw he was a kind and generous person. All God did was point out the good points. As I am sure he would with you too, surely you have some good qualities, and it is those God focuses on.
Then with Simon the guy who was stabbed, God had ask me "How would I like to be stabbed?", before I had even met him, again God was tender hearted toward him not harsh.
As for the injustices that are caused in this world are not the desire of God, he says Rom 12:18-20 If it is possible, as far as it depends on you, live at peace with everyone. ... On the contrary: "If your enemy is hungry, feed him; if he is thirsty, give him something to drink.
I have been praying recently that God will really begin to make a change in the injustices in the world and I believe he will do so. So much so I have even been praying for Dawkins that he might be blessed with the knowledge of God's love for him.
As for the Iranian President God sent him a mesage saying "Seek Good and not evil that you may live, and I will be with you as you say that I am". All Muslums believe God is with them, but they are misguided they unintentionally at times do evil, esspecially agianst non believers. I guess we all do at times. But God is good, and he wants us to do good. So God was saying "Be good, do good", stop doing anything bad.
As for verification of these things you are right only I can verify them. I mean we could find Simon, at least you would know he is real. Honestly I fear trying to prove stuff through challenges becasue really I can't control it. For now until my faith and abilities in God grow all I can say is ask God to get you with his love. And hope that he reveals to you the truth of my words.
But I would ask you, if you can muster a little faith, to sincerly consider the character of God in those things, he was always choosing to find the good.
To solidify that point I will include on of the stories from the site. And again it was God finding the good points in an unbeliever.
I have a client at work (a non Christian) who was wanting to build a web site from which to give 20% to charity. There was only one problem in my eyes he was using his site to support his local watering holes, i.e. pubs and clubs. So I went to God in prayer. I decided to open the bible at random to get a direct word of the LORD for him, to know whether I should continue to support his project, because I felt that the drinking side of things might negatively impact some people. I opened the bible and put my finger on a verse on the page it was Act 20:35 - In everything I did, I showed you that by this kind of hard work we must help the weak, remembering the words the Lord Jesus himself said: "It is more blessed to give than to receive.'". So Jesus gave me it was It is more blessed to give than to receive. So from that I knew God was really pleased with his heart attitude, and I believe will bless him, regardless of the faults in terms of drinking. Hopefully you get the point God loves him, and he loves you to.