In this case, I'm referring to the notion that we all make minor sacrifices in our daily interactions in service of a "greater good" for everyone.
"Following the rules" would be a simplified version of what I'm talking about, I suppose. But also keeping an awareness/attitude about "How will my choices affect the people around me in this moment? "Common courtesy", "situational awareness", etc...
I don't know that it's a "new" phenomenon by any means, I just seem to have an increasing (subjective) awareness of it's decline of late.
My spouse and I talk about this often. A very obvious example is how rude (and recklessly dangerous) people are while driving. And myriad minor things out in public in general. No sense of community and a complete lack of consideration for others is the new normal. It got worse during and after the pandemic.