It's deeper than private vs. public. It's more about the "employed" bit.
For a very long time, helping your community and being involved in it meant you got to eat. That's no longer the case. It's perfectly viable to clock in, say nothing to anyone, clock out, repeat. It's also possible to give all you can to your community and starve to death.
The survival strategy is no longer "seek community" but "seek profit", because human society is now more dangerous and rewarding than the natural environment.