People often say that "you will win through hard work," but in the workplace, this sentence is not 100% correct. Many times, working too hard does not necessarily get a promotion or a salary increase, but a big reduction in points and even a job loss.
Working hard isn't just all about being employed.
You can apply that with your own business which is very much needed when you start. And that's why you see known companies today became successful because of its founders work hard and then latter, they worked smart.