You remind me of a story: Inner city school starts a garden. At some point, a teacher pulls a carrot (or whatever) out of the ground, washes it off and eats it. School kid who observed this starts wigging out: Did you see what he just did?! He pulled something out of the DIRT and ATE it!! Ewww!

I will add that it causes big problems when decision makers have no clue where stuff comes from, what the world's limits are, etc.