What I do not believe the living wage campaigners do a good job of justifying (and why I generally do not agree with the movement), is how much a wage is necess

What I do not believe the living wage campaigners do a good job of justifying (and why I generally do not agree with the movement), is how much a wage is necessary from a policy standpoint. At the moment, it comes off as completely subjective, and based on a very rough consensus of what a group believes is enough to live on. But, they will say, providing this wage only adds pennies to the cost of some item or service you purchase. Well then, if $12/hr is "good", why not go for "great", and make the wage $30/hr and have everyone loving their job? No answer. Although, I would welcome that level of wage for our Muni/Bart/SF government workers, who are well beyond, at the level of "ecstatic".