An emotion as much tells you nothing about reality, beyond the fact that something makes you feel something.
Ayn RandMan is a being with free will; therefore, each man is potentially good or evil, and it's up to him and only him (through his reasoning mind) to decide which he wants to be.
Ayn RandPeter Keating: "Do you always have to have a purpose? Do you always have to be so damn serious? Can't you ever do things without reason, just like everybody else? You're so serious, so old. Everything's important with you. Everything's great, significant in some way, every minute, even when you keep still. Can't you ever be comfortable-and unimportant?" | Howard Roark: "No."
Ayn Rand