Not 100% true.
You might sacrificing something, but in the end you will not become successful. I've seen some people focused on one thing, sacrificed everything that they have just to become successful, but in the end, they quitted, regretted their decision, and found something that they love to do, and focused on it.
People who think visionary will not regret what he has done, because there is no best way, everything takes hard work to know whether it works or not. Although in the end he failed and tried to fight on other trials which certainly required hard work to succeed again.
But I agree that people who work hard will get better results. At least he tried his best with what he believed. Because the main capital today is to try, try hard, no success is achieved easily and instantly. There is a painful process to make a strong person to fall repeatedly and succeed in the end.