I've seen tons of games out on the internet that pertain to growing/selling and harvesting marijuana not to mention how support groups are trying to make it legal. So my idea should not be shunned away just because it has to do with a drug, a lot of freelancer has made up drugs that are traded within. Why not make a mod based on trading specific plants per say putting names on things doesn't mean it is what it is, like the name "white widow" could be anything, point is a mod based on that sort of thing would be a popular mod.
Take a look a games like potfarm on facebook, it has over 900,000 users. there is a way to work around everything, you just have to be creative. Imagine the possibilities, in game it could still be illegal, could have gangs instead of clans, cops, thugs, snitches, narcs, DEA, FBI.
The ideas are endless as to what can be done with freelancer, we just need to think out side the box.
Please don't frown upon the idea, I can't be the only one who has thought of this.