That's a pretty cynical world view. I think a lot of bad stuff happens for reasons that could be taken away given better social structures, e.g., people who are abusive because they were abused themselves, desperation because of poverty, etc. There are probably psychopaths which simply have the genetic disposition for that, but violence perpetrated for ideological reasons is definitely something that society could address one way or another.
Likely we can reduce the incidence of destructive acts somewhat, but it seems improbable to eliminate them entirely... with billions upon billions of humans roaming the planet, a few minds are bound to go off the rails.
