I don't want to say that. I'm rather fond of my family and my friends. Who are these strangers you're asking me to sacrifice for?
I want to look back at my life and say something like, "I labored to make a sustainable business, was able to see my kids grow up and be there for them. All while working towards making the world a little bit happier, maybe employing some people, or let people live a bit happier or a bit better".
(I don't really want to look back on my life and see nothing but crazy deadlines and late nights)
A typical dev could probably work 60% of a normal schedule and afford a comfortable life for their family. You could go home at 1pm every day and that'd be fun, but you can also sacrifice a bit of that and make change.
IMO, life without friends and family is wasted.
surprisingly common in atheists, environmentalists, etc even if they are not traditionally considered religious.
However, I don't see the atheist connection. Yes, some atheists are big govt types, sure, some do, but "sacrifice for the stranger because ..." doesn't seem to be an essentially atheist characteristic.