> Help your doctor friend [...] but also make it clear that [...] what you're doing comes with a message that you expect her to pass on
I don't really agree with this part. You can't demand that another adopt your morals, certainly not genuinely by offering conditional help. I avoid people like this, because they think they've figured out what's best for someone else and judge everyone who doesn't think the same.
Just aim for the highest good, and course correct since chances are you don't know what that really is. Others will join or oppose you, that's feedback.
Organisations are generally pretty shit at achieving anything.
But the good news is that individuals can and do make a difference and ultimately change things. It's the small wins that count. Changing one person's habits. Getting one more friend to drop BigTech. Getting one teacher to rethink the effect of over-connectedness on our children. Showing one person the problem of e-waste and seeing them jail-break an old phone instead of buying a new one.
You overcome the myth of "the they" (the hordes of mindless "users" who just want convenience uber-alles that we always hear about on HN) one real person at a time.
Then you start to see friends and colleagues reflecting good values back at you. Help your doctor friend streamline her time with real computing tools, but also make it clear that you're not a charity, or a mug and that what you're doing comes with a message that you expect her to pass on. The health message about harmful technology [1] should resonate with doctors. Encourage her politely to change her lifestyle just as you would commit to changing your diet and exercise if she told you to.
[1] https://digitalvegan.net