If it doesn't then suffering has no point, if there is a purpose (such as to develop compassion) then it (suffering) has a purpose.
You are making a baseless claim that suffering develops compassion. You don't need agreement by us for this claim but you need at least some form of evidence to make it understandable, otherwise its empty. How does the suffering that leads to death of a 5year old teach that 5yr old compassion? You seem to be over generalizing or sometimes too concerned with the survivors. This debate isn't concerning only survivors but also those who die. I could just as easily say to you that raping a girl teaches her submissivness, granted thats disgusting and horrible and needs no agreement but it has no substance until I show you how rape victims learn submisiveness through their experience.
Agreement is not relevant to the argument
Agreement with popular Christianity is relevent to this argument and your theory does not seem to agree with popular christianity that uses scriptures like these to support afterlife being more important and this life doesnt matter in comparison and to support suffering as means "to give God glory."
Suffering for Being a Christian
1 Peter 4:12-16 New International Version (NIV)
12 Dear friends, do not be surprised at the fiery ordeal that has come on you to test you, as though something strange were happening to you. 13 But rejoice inasmuch as you participate in the sufferings of Christ, so that you may be overjoyed when his glory is revealed. 14 If you are insulted because of the name of Christ, you are blessed, for the Spirit of glory and of God rests on you. 15 If you suffer, it should not be as a murderer or thief or any other kind of criminal, or even as a meddler. 16 However, if you suffer as a Christian, do not be ashamed, but praise God that you bear that name.
James 1:12
12 Blessed is the man that endureth temptation: for when he is tried, he shall receive the crown of life, which the Lord hath promised to them that love him.
only the ability to understand that a purpose for suffering exists.
I undertand that a purpose for suffering could exist it's just that noone here including yourself has offered an understandable one. Its up to you to make it understandable. You provide no support, only opinions. I could make the claim that the moon is green and you don't have to agree with it, you only need the ability to understand that my claim (the moon is green) exists. Understanding that my claim exists does not support it's truthfullness.