Considering that chimpanzee males roam around in packs, are territorial, and sometimes beat to death and tear to pieces, with fists, nails and teeth, other chimps they encounter on the way (and sometimes they don't), I'd say it's not a safe bet to try and find human agression emerging because of some technology.
I suppose that if you taught one band of chimps down there in Africa to pick up big sticks and beat their opponents when running around out there in packs, they would do so, and their young might learn from them too. This would be considerably worse than teaching kids to smoke.
Yeah, I agree. The technology was developed out of the need / desire, rather than the reverse.