Perhaps we are just beaten down. After being figuratively kicked in the crotch for a long time (wages have been stagnant for 30 years at least), and the rule of law subverted by the Bush administration; lets face it... people have seen worse and are used to it.
Probably not with weed, but drugs in general aren't all theyre cracked up [pun intended] to be.
Sure, its high demand but you get lots of shifty people coming around with their money gotten in shifty ways.
Things quickly escalate, and you end up dead and robbed.
Over the shoulder supervision is more a need of the manager than the programming task.