What isn't luck? I only am who I am today because of a combination of nature and nurture. My genes and my environment defined who I am. I had no control over either of those things.
I mean, if I was born on Steve Job's birthday, with Steve Job's genes, to Steve Job's parents, presumably I would be Steve Jobs. From that perspective, it's pure luck I'm not a billionaire. And, similarly, pure luck that I'm not literally Hitler.