Well, the government owns marijuana farms, but so can private businesses. We allow the sale of alcohol, so why not let people grow hemp crops? Not only can the leaves get people high, but the rest of the plant has uses too. You'd be surprised the things it can be used for (Paper, rope, clothing, seeds can be used to make oils for various things, etc). It's a versatile crop.
As for it making people more powerful, it'll make gangs less powerful and restore legitimate business to the world. Works for me.
Daxx, what're you talking about? Alcohol is a prime example. It's a legal substance, it's easily abused, it can addict people and destroy their lives, just like any other substance. When it was banned, it became a booming industry controlled by gangs, violence thrived, and many people got sick or killed by unsafe alcohol. All banning a substance does is drive those that use it into a black market and black markets are only regulated by violence.
I know people will abuse substances, but they do anyway, and you don't have a right to stop them. It's their body and their choice. We can't start forcing people to live by our standards of health or we start taking away their freedom of choice. At least legalizing it ensures it's cleaner, safer, and takes power from gangs.