I think it is democracy in action to some extent, but I don't think the intention behind it comes from a pure place. I reckon it's more a simple vote grabbing strategy that has been used for a while now. Like I say though I hope I'm wrong.
Although, on a global scale decriminalisation seems to be slowly but surely on the rise, so I definitely do have some hope. Also the health and economical benefits of cannabis are getting more difficult for them to ignore!