There is a very big distinction between the two, in that a field of marijuana would only be female plants. If you have any male plants in a marijuana crop, you're not going to have a very good crop. It's counterproductive to try to do that.
The other point I want to make is that when the industrial hemp regulations were first created, back in 1998, there were some concerns because of the flowers and the buds, which tend to have higher THC levels. The plants nowadays have a lower threshold than what is required for the entire plant, so the point that Keith just made about having to throw the CBDs out on the ground is quite a waste, under the circumstances, because the whole plant is safe to use.