Genetically coded social behavior helps the genes even when they don't help the individual. The most obvious example is how each worker bee in a hive or worker ant in a colony is a genetic dead end, with no offspring, but will do plenty of work to help the overall hive/colony survive.

We're hard wired to raise our children, as can be shown by just how helpless our children are at birth, and how long it takes for them to form full maturity. That extends to the whole village, including grandparents.

Meanwhile, plenty of anthropological evidence shows that we form coalitions and tribes and work together to advance group interests, and that it's been going on for our entire species' history, including in the genealogical line that we descend from, outcompeting other hominids and even other branches of homo sapien that didn't form such complex alliances.

Our brains are hard wired to develop complex language for communication with other humans. This is what helped us thrive as a species, to where our evolutionary success threatens to harm our greater environment.

But that just shows that humans are really good at socializing. And as social creatures, we have evolutionary value even beyond our direct ability to produce offspring.

Evolution cares whether you can keep the kidlets safe until they themselves have kidlets tho. That should give you at least another 5 years before your spine self-destructs