Erm, who cares if theyre selfish? Do you really think their lifeless bodies are rolling over in their graves thinking "oh my god I made all of my friends and family go into a depression! I wish I could undo this!"?
Hint: Theyre not because theyre dead.
I mean really, if you ever are going to kill yourself and you stop and go "Oh my god I cant do this, Ill be leaving my family all alone..." Well who cares, because once you do it your family basically doesnt exist anymore. Youre not going to feel regret.