HIYes a graduate can play a vital role in the societal changes. I would say that not only the graduate, even a layman can make a difference. This is because when you are educated and you know that there are certain societal evils prevailing in the social circle you can make attempt to curb the evils by spreading awareness about it.
Societal evils are usually found in the rural areas. You can form a club or a group an take an initiative to educate the people. A small step can always make a lot of difference to the whole lot.So do not wait for anyone.
You can take up your step and let others join too.
Any person can play a role in doing their little bit to change the society, since we are the people who make the society. If you feel that there is something to be changed, then take the first step in changing/correcting it, rather than waiting for someone else to take the initiative. Example : green peace movement - it was started by people who wanted to make a difference and today it is an international organization that prioritizes global environmental campaigns.So, a graduate or any person has to make a start.
Thats all it takes to make a change.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.