By removing the profit motive from cannabis production it helps to reduce cartel receipts, helps to reduce smuggling, and separates cannabis from other, truly harmful, drugs such as cocaine, methamphetamines, and heroin.
That so many US states have already made provisions to either decriminalize medical use, and or recreational use, by individuals, serves to illustrate that cannabis is nowhere near as dangerous as governments have attempted to portray cannabis as being.
There is absolutely no reason for the DEA to classify cannabis as a Schedule One drug when legal drugs such as alcohol and tobacco are responsible for an exponentially greater amount of negative social impacts when compared with cannabis.
Case in point?
Amsterdam.
Just look at the statistics regarding "hard" drug use in the Netherlands, as well as incarceration rates, and homicide rates.
http://www.drugwarfacts.org/cms/netherlands_v_us#sthash.ta7j...