Nature or god or elohim or galactic federation whatever you say for the Creator, it's unimportant, it's important that what or who you want to mean, this order that we experience, disciplines them anyway, even if they don't want to find out truths!
In fact every entity has a value in God's plan but unbelievers don't have a spiritual value because of their godlessness, as the phrase goes that they are like an animal. It's important to notice that bodies change, die but souls live forever. Souls need any spiritual belief to live in a spiritual form. Jesus/Christianity and Abraham's other religions give people the belief of this spiritual form. The rest is people's problem. If you want a certain answer for your question, it's here: "Unfortunately, yes!"
Sorry I misunderstood it some. Now I realized that I am wrong! so sorry folks!
If you mean there being unchristian, in point of spirituality unchristian people that have any creator belief, can improve their souls, too. As far as I know there are some esoteric, occult foundations for irreligionists that have any spiritual belief, but Prophet Abraham's religions (Judaism, Christianity and Islam) make most simple helping people for this development. Moses, Jesus, Muhammad are holy characters of holy books ( differences and conflicts that are between those, root in exterior views, cultural and historical problems, in fact all are crops of Elohim) if you accept them, you easily find out the existence of god in your inwardness, moreover hence Jesus had said: "Whoever has seen me has seen the Father."
Edited by Muzzybluezzy, 09 November 2012 - 01:36 AM.