Try to find something you can do that you have control over and will make things better. E.g. I've been working in free time with local group to get safer bike

Try to find something you can do that you have control over and will make things better. E.g. I've been working in free time with local group to get safer bike infrastructure built in Cambridge. One of results of our efforts was on front page of HN yesterday. It was a group effort, but I did a little bit, and it has actual impact. Will it solve all the world's problems? No, but it's a small step in the right direction. And it's at a scale where I can have an impact and see results. You also have the ability to find work elsewhere that is more meaningful, some companies are much better than others in what they do (e.g. in similar realm to above, https://www.remix.com/ https://www.remix.com/ seems great.)