In psychology, the desire to do more for society is called the higher moral calling or the term "elevation" is used. That is where you feel you have not done nearly enough to feel satisfied until you go above and beyond. It is similar to the feeling you get when you see a stranger do a good deed for another stranger. It makes you feel like you have done "less than" but the other stranger may be more elevated or called to a higher purpose.
Because the news is more eaiser to spread and more people are on the internet these days so they will notice the human rights violations and more people will talk about it.
