There's an old nugget that if anyone could time-travel they'd go back in time and kill Hitler. Nobody would go a few more years back to educate him.
People are not educated to look at the big picture but to react in the moment. Stop the theft as it's happening. Shoot. This goes best with societies where taking a life is considered appropriate response to someone trying to steal your fishing lure, societies where your individual rights trump absolutely anything else (imagine explicitly voting to pay more taxes yourself because that will benefit the poorer part of the population).
Reacting in the moment requires almost no thought out process. It's mostly autonomous, a reflex. Thinking of the bigger picture, identifying a root cause, identifying the impact of each of your options, these all take a strong enough education to override that reflex.