The New England Patriots are great because of their culture. Manchester United under Sir Alex Ferguson were great because of the culture. Roger Federer is great because of his culture.
Obviously, things like talent, personnel, coaching, finances all have an impact. But they are all grounded in one thing: culture. It is the culture of a place, an organisation, a person or peoples that breeds the efficient maximisation of things like talent, investment and resource.
There is a reason why leaders in society talk about changing the culture. The attitudes that people hold bleed into what they say, what they do, how they behave and the results that they achieve.