In my opinion it is very difficult for an individual to influence change in society. But it is possible to give the lead for maybe a small group of people at first. And when other people see your success, they will follow your example.

But it musn't be your goal to change smb's opinion. You must enjoy your life, and your life must have sense.

Most people want to be managed. But it is so easy to deceive them. And there they act harmful to themselves. And so your goal is to learn the truth and to show it to others.