Focus of course is extremely important and everybody who is successful is focused. I would add or maybe substitute the word focus with persistence. Persistence may be the same thing as focus in this case.
We all know smart people that are not successful, we all know educated people that are not successful, we all know beautiful people that are not successful and we all know talented people that are not successful.
The ones who are successful are the ones who never give up. So, you don't have to be educated in order to be successful. You don't even have to be beautiful if you persist or if you focus.
