“A rasha loves doing what they do. They love causing misery to others, that is their enjoyment and that is their whole purpose in life to hurt others and to make others miserable. So why would a rasha contemplate suicide and another person have to ponder whether or not to save them?”
A rasha who thinks that ending his life would cause misery to those left behind? Who hates someone enough to want to cause them the agony of the decision of whether to try to save them or not? (Suicide bombers (yemach shemo) come to mind.)