There is no REDEMPTIVE value in suffering.
Our redemption is complete with the cross and the finished work of Jesus on it.
Being conformed to the image of Christ, which only the born again believer can be, is attained through other means.
But it does not gain, keep, or ensure our salvation, which is a done deal.
There is a huge amount of good that can be accomplished for souls through intercessory prayer, and expiatory suffering suffering. You don't believe that, it's your choice.