The upper middle class is often the dominant group to shape society and bring social movements to the forefront. Movements such as the peace movement, the anti-nuclear movement, environmentalism, the anti-smoking movement, and even in the past with blue laws and the temperance movement have been in large part (although not solely), products of the upper middle class. Some claim this is because this is the largest class (and the lowest class) with any true political power for positive change, while others claim some of the more restrictive social movements (such as with smoking and drinking) are based upon "saving people from themselves."