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.