OTOH you can see it as a litmus test (or "foot in the door") for whether people would be willing to make larger sacrifices. Every time there's a discussion of something with a bigger impact, people shut it down because they don't like the personal sacrifice required of them, even when we're talking about their elephant contributions. Yet when you try to start small people still object because the impact is too small on its own and they purportedly want larger changes. I see it unfold right here on HN on almost a weekly basis now. I don't know how to have hope for this planet but it's pretty depressing to watch.