I understand why you'd feel so much despair over that, but there's some hope - the truth is that the majority of the population don't really develop their own value systems to decide what is right and wrong, instead, they just follow the mainstream, which is often determined by the media and by their leaders.

To change the world, we don't need to get a majority of the population on our side, we just need enough of a critical mass to be able to defeat the ruling class and create a new society.