In theory, internet could empower people to make a better world, but unfortunately, in practise it's really different.
People could use this media to do incredible things. In fact some organizations like Greenpeace are doing it, and they try to make the best out of it. Most people don't belong to this kind of organizations and they only use internet to enjoy it or to make a profit for themselves. Nowadays, people spend hours surfing on the internet and while they could fight and defend whatever thing which is good for the planet, they prefer to look at photos or chat with someone who is sitting next to them.
In my opinion, only a certain amount of people are using internet to make the world a better place; most of them are just waisting their time.