Earlier quoted context omitted.
The probability of you having significant controlled influence on the fate of the world is much higher than the probability of total meltdown of society necessitating a stockpile of guns and bunkers and your preparations having a significant controlled influence on your experience of it. So no, focusing on the actual problems is actually less foolish than "doomsday prepping".
Significant controlled influence on the world at large that leads back to a detectable benefit you? Not a chance. The probability of societal meltdown is small, but it's larger than any of our individual impacts. Heck, just the risk of meltdown through accidental nuclear war (easily 0.1%/century, and arguably at least 10 or 100 times that) is already large enough. This is a question of altruism, or of whether all of…
I am pretty sure there are lots of people in my city who are watching my back because of kindnesses I have extended.