[malnourish]

I think even that point is debatable depending on how you define success.

If the definition of success is wealth or notoriety, there are certainly people who achieve it without those traits.

[icelancer]

The fact that people become successful and/or notorious due to luck does not invalidate the fact that work ethic and your efforts play the largest controllable role you have. To focus on pure chance outcomes is unproductive and nonsensical.