You can't change the world by treating everyone well but you can sure as shit make all their days better, and that's what we should be doing. If you want to live in a world that isn't isolating, stop isolating the strangers around you.
That said I think there's an element of truth that society generally creates incentives that can lead to outcomes nobody wants [1]. You can get equilibriums where without effective coordination people are trapped, sometimes the trapped state can prevent effective coordination itself.
It's not an easy problem to fix.
[1] http://slatestarcodex.com/2014/07/30/meditations-on-moloch/
When people chose to smoke pot, knowing that it was illegal, they were normalizing it. Those were small decisions by individuals that snowballed into legalization. Gay marriage and the acceptance of homosexuality followed the same pattern, where individuals decided to be more accepting, and that snowballed into societal acceptance.
Society is made up of individuals, and we are part of society. Throwing up our hands and abdicating responsibility doesn't serve anyone.
The Enlightenment/democracy, abolition of slavery, civil rights movements, unions/labor rights movements are all examples of humans consciously improving their societies.
Great list though, maybe add on reproductive justice and climate science.
Getting the bumble bees back to a state of working in the same direction so we can be competitive with countries who've already achieved that is the tricky part.