An atheist arrives in hell and sees several demons and Satan approaching him

Satan: "Welcome, Come here please"

Atheist: "Who are you?!"

Satan: "Let me introduce myself, I am Satan..."

Atheist: "you are the devil!"

Satan: "Yes, but I'm Lucifer's left hand man... Nice to meet you"

Atheist: "Why do you show me so much respect?"

Satan: "because you did something that not even... I could do"