Funny coincidence, I just had a conversation about this last night.
A friend of mine has been in the wholesale meat business for 30 years, and he offered an interesting insight to this subject:
In order for milk and meat to qualify as USDA Organic, the animals must never be given antibiotics when they are sick or injured. On organic farms, animals with treatable illnesses such as infections, parasites, worms, and pneumonia are left to suffer and a higher percentage die off.
For example, if out of 100 head of cattle 20 of them die from lack of treatment, that financial loss is spread among the remaining 80 head.
Since the cattle ranch isn't going to take a loss, it's cost is simply passed on to the consumer. Then the consumer mistakenly rationalizes that,
"since it costs more it must be better, and I deserve what's best."
He told me the bottom line was this: Since it wasn't scientifically proven that antibiotics in beef harmed humans; by subtly suggesting it did opened the door for organic products and another avenue for profit. (Very much in the way the bottled water industry started.) Kinda reminds me of fancy and expensive speaker wire too.