Good point ... but then does the psychology of "win/lose" not also get pulled by the physical "treat" system in our brain - reward for winning/ feeling achieved? Do you not think that some people may have a greater need for the brains feel good fix and so they "learn" to love violence even when they know it is wrong? It's a very tangled web indeed.
Think of a scenario of youth gets involved with a gang. His family are good people, he's be raised in a secure, happy environment, does well at school, yet when he's in his gang he'll beat someone who's weaker, spit at a homeless guy and so on. Is that ALL psychological or sociological thing?
So why? Can we disclude the fact that his brain is chemically excited which then leads to further similar actions. He then "fits" into the gang. It's socially approved of. He's getting teen angst off his chest and is belonging so his psyche is massaged... And chemically his brain gets hooked on dopamine. He's a "winner".
It's just a thought pattern and I dare say a million loopholes yet it happens.
I actually believe now that a violent aggressor probably had to tick all three boxes somehow.
Thanks for joining in and tell your human the same 😸😸