There are only three things we actually have any control over, our words, our actions and reactions, and our thoughts. Everything else is beyond our control, once that can be accepted and worked on, our reach seems to shorten, to what is actually within our grasp.
The world goes round and round, life goes on, clean one room at a time, as quick as one can, and as slow as one must.
The world will change, those you are around will be closer to you, the world at large, further from you. It may not bring about world peace, but it has to start somewhere, and you are as good a beginning as any where.
Well are not responsible for others views, actions, deeds, or any thing else, only our own.
As your work so well points out, examples matter.