No one says anything bad about the dead. I mean, I haven’t come across anyone who says to the dead, “You really deserved to die!”
People tend to remember the nice things. How wonderfully caring he was as a father. How absolutely filial he was as a son. How amazingly loving he was as a husband. How truly blessed it was to have befriended him.
Is it out of a polite respect for the dead? No matter who or what he was before, in death he is always good and kind-hearted and nice.
How simple it all seems. Death, the great equalizer.