Think of all those people who were consecrated at baptism and those hands that have held the Body of Christ and the mouths that have received the Blood of Christ and have done the same as some priests and have violated their vows of marriage by committing adultery.
I believe the answer to all of this is repentance and forgiveness. Punishment is a form of madness.
Only priests are allowed to touch the Consecrated Host. I believe Mother Theresa was the one who said that Communion in the Hand was an abomination, I share her views. Again, you are speaking of ordinary humans who sin and can be forgiven if they possess true contrition and are willing to do penance beyond that which the priest gives them. Priests are different.
Punishment is a form of madness.
Is Hell a form of madness?