What we often forget is that while our own sins may seem small in our eyes, they are large and big in God's eyes. We may think we are good people, but we are sinners, too, in God's eyes, just like the murderer, rapist, mobster we despise.
"If we say we have no sin, we deceive ourselves, and the truth is not in us." 1 John 1:8 ESV
Before we know God or receive Jesus into our lives, we are just as hopeless as the mobster, rapist or murderer we despise. Yet, God does not think we deserve to go to eternal jail, hell but deserve to be blessed with Him in our eternal home, heaven. God gives us a second chance. Jesus died on the cross and paid the penalty for our sins. God did not give us what we deserve.
So, it is important that we do not look with disdain at the murderer, rapist or mobster but we look at them with compassion, instead. We also ought not to give to them what we think they deserve--jail or electric chair but our compassions.