Hart wasn't just building a career, he was building a character and way of film. He is "credited for creating the role of the 'good bad guy'—a character that starts out living an immoral life (outlaw, gambler, etc...) but has a heart of gold, and is eventually set on the path of good, clean, honest living by the end of the movie".("William S. Hart Museum History") This is a character that is widely known and used throughout film, and can be attributed to the character Hart wanted to represent time-and-time again in his films. This brought this formula popularity and “by 1917, his films were the highest grossing in the industry, and his "Two Gun Bill" look was known around the world” ("William S. Hart Museum History") 

               "Hart's films are iconic and immediately recognizable."-                "William S. Hart Museum History"

Hart's impact on Western films is unlike no other. Especially because of his authentic approach that set him apart from what had been done before. Hart was driven to make the Western aspects as authentic as possible. He introduced realism through the “dilapidated and dusty sets, sweeping landscapes, minimal action, and plain, drab, utilitarian costumes.” ("William S. Hart Museum History") Having a grit factor is what set the standard for other films to live up to. As stated in the clipping to the left “no expense, no trouble, no detail, no time spared!”(“William S. Hart in 'The Toll Gate.'”) This is a testament to the dedication Hart put towards his films and this lived on in those who view it.