Can social media be used as a tool by one individual to successful push change in society?

It is a very effective tool for that matter.

One of the fascinating things about social media is how it is all-inclusive. Everyone has an equal platform to voice their opinion. This is a break from traditional media which restricted those who could have a voice. Take for example the civil rights movements from the 1960's to the 1980's, there was a famous face behind any political activism. Whether it was Martin Luther King Jr., Cesar Chavez, Che Guevara, Gloria Steinem someone who could rally the masses with charisma, and inspiration. However, recent protests that happened online such as the #MeToo movement by women, black lives matter, occupy wall street, and many more have shown that social media has changed activism. Years before it would take weeks of planning, ads on newspapers and televisions, just to organize a successful protest, now with social media, its a tweet or Facebook post away and millions from around the globe can join your cause. A good example of such a protest was the Occupy Wallstreet protest which happened in 82 countries and involved millions globally. That is an audience no traditional media can boast off. Since the onset of social media, we have seen governments trying to ban social media in countries where there have been massive protests. But that only adds fuel to the spirit of activism.