If the GM absolutely needs a truly ordinary person, all attributes might be at level 6. Note that most people also have an occupation, which gives them bonuses in certain areas. If the GM wants to run combat-intensive adventures, he should make his goons and thugs considerably weaker than the average examples above. If goons were useful members of the society, they would be doing something constructive instead of beating up others. End of lecture.
Fame is the only attribute that can be increased by experience.
If you succeed, your Fame is raised by one. If you have high Smarts, you choose your roles well, hire only the best agents and otherwise make good career choices. Finally, if you have high Style, you look good onscreen, have lots of sex appeal and easily charm most people. They are most often offered roles which demand that certain quality. Anyway, bonus points should not be handed out very often.