Anthropology has shown that masculinity itself has social status , just like wealth, race and social class. United States Presidents George H. In the mid-twentieth century United States, for example, John Wayne might embody one form of masculinity, while Albert Einstein might be seen as masculine, but not in the same "hegemonic" fashion. As societies have moved away from agriculture as a primary source of jobs, the emphasis on male physical ability has waned. A German male model showing a muscular body with sixpack, example of masculinity. Through a combination of economic changes and the efforts of the feminist movement in recent decades, men in some societies now compete with women for jobs that traditionally excluded women. Assumptions and expectations based on sex roles both benefit and harm men in Western society as they do women, but in different ways in the workplace as well as on the topics of education, violence, health care, politics, and fatherhood - to name a few. Some larger corporations have instituted tracking systems to try to ensure that jobs are filled based on merit and not just on traditional gender selection. Masculinity has its roots in genetics see gender. Masculinity is associated more commonly with adult men than with boys. The male goal in these circumstances is often of pursuing a quality education and securing a dependable, often office-environment, source of income. Many industrialized countries have seen a shift to jobs which are less physically demanding, with a general reduction in the percentage of manual labor needed in the work force see White-collar worker. Research has identified anti-male sexism in some areas which can result in what appear to be unfair advantages given to women. In western culture , for example, greater masculinity usually brings greater social status.