Might be a good idea to remember that those sats also only help when you've got people around you who are both producing the things that make up Maslow's hierarchy who can be convinced to accept them too. If everything you buy comes from somewhere else...maybe start looking around and see how good you think your chances are if those somewhere else's stop sending things away.
At the very least, don't be that average American with only 3 days of food on hand.