I think you may be contradicting yourself. Using your example, one thing leads to another but it all hinges on an initial lucky roll of the dice: born in the US to the right parents. No one "earns" this head start but almost everyone reading this discussion has it.

Like you, I believe that I've had some say in getting to where I am today, but it's hard to tell how much of that is reality and how much is self-aggrandizement.