The idea that society could be reformed was called

perfectionism

pastoralism

personalism

pacifism

patriotism

A reform movement is a type of social movement that aims to bring a social or political system closer to the community's ideal. A reform movement is distinguished from more radical social movements such as revolutionary movements which reject those old ideals in the ideas are often grounded in liberalism, although they may be rooted in socialist (specifically, social democratic) or religious concepts. Some rely on personal transformation; others rely on small collectives, such as Mahatma Gandhi's spinning wheel and the self-sustaining village economy, as a mode of social change. Reactionary movements, which can arise against any of these, attempt to put things back the way they were before any successes the new reform movement(s) enjoyed, or to prevent any such successes.

Perfectionism

Explanation:

Perfectionism is the only one that fits. Also, here are the definitions of the other words incase future social studies people need more proof.

Pastoralism: The practice of following your livestock in search of a pasture.

 EX: Pastoralism is still used in some parts of Africa.

Personalism: A intellectual state that emphasizes human importance.  

EX: Humans are very important, so I guess I am a personalist.

Pacifism: The state of not acting.  

My dog won't bite, he's a pacifist!

Patriotism: The quality of being patriotic.

EX: That dude in the lifted truck thinks he is patriotism incarnate.