At that time, there was almost no spam because we could report them to abuse@domain...
There was no firewall in front of our campus and we were using rlogin to connect outside. I used export DISPLAY from Brest to Paris (to use xdvi that was not installed locally).
IMO, the security (ssh and killing rlogin) is the main change that is a really useful progress.
I think the belief of ordinary people most likely to dispose them to atrocity is that of prioritizing the ingroup. Once we believe that the members of one's own family, or company, or country, carry more moral value than others, we're doomed to a descent limited only by our ability to make these world-worsening trades.
When I was a child, my dad would sometimes engage in small acts of corruption to please me or my brother. Taking somebody else's spot, telling white lies to get more than his share of a rationed good, that sort of thing. It never sat right with me. "Family first" has a very ominous ring to me.