How could something survive with other entities without things like fear and empathy though? It would just be constant chaos and nothing could get done. With no

How could something survive with other entities without things like fear and empathy though? It would just be constant chaos and nothing could get done. With no fear, you could just wipe yourself out and not thing twice about it. Without empathy, same, you'd just be killing things permanently. I do wonder if the quest to build AI will teach us a lot about why the thing we take for granted exist. Why have fear, limits, empathy, anger etc. I suppose bacteria is a bit like this but it’s limited in its capabilities to evolve too quickly and wipe everything out?