In the article Dan linked about people voting for Trump even though they need the ACA and Trump vowed to repeal it, there's some interesting bit of self-sacrifice there.
Debbie Mills, the spotlighted Trump voter who needs the ACA, said she voted for Trump because the people in her town are losing their jobs and need work, and that despite needing the ACA herself, the town is all in this together
Her words, from the article:
We're in a small, rural area where there's not a lot of businesses right now going on, and so we can't really have anything else shut down, because it affects everybody.
We were in an area where there's lots of coal. And so we don't work in the coal mines, but … one job affects this job and affects this job. If they're not working, they're not grocery shopping, they're not going and buying furniture, they're not buying clothes, they're not doing anything.
I'd read this article before but didn't catch that part. It's very interesting. As a democrat, and more or less a socialist, I agree that what happens in that town affects everyone, and so her actions of thinking of the town first and her own personal health (her husband's actually) second, resonate with me.
The actual outcome of this may be fundamentally flawed (Trump and the republicans are liars, cheats, and a frauds, and will not be bringing any work to that, or any, small town unless it happens to have billionaires as residents) but her sentiment is morally and ethically sound, imo.