If you think you can make the country better you try and convince the group to follow your opinion. Whether you are right is another issue. For instance, Reaganomics was and is bad for the U.S. but Friedman, using he was a University of Chicago professor convinced many, too many, that crony capitalism is better than regular capitalism which needs a middle class that consumes rather than wealthy people badly investing.
One of the tricks of saving capitalism is convincing the wealthy to be happier using ideas, as Nash indicates, helping the common good.
IN other words, the guy who gets the blond needs to make sure all the other guys and gals are winners too.