I'm a bit late in answering. I brought up the decentralization and deregulation of taxi transport (via Uber / Lyft) because I believe the impacts - significantly lowering cost and improving availability of transportation - are a net societal benefit, despite reduced wage stability. This improves public safety, creates incentives against drunk driving, creates affordable alternatives to lengthy public transit rides.
Grocery delivery is a similar case - for many, reducing the cost and improving availability of grocery delivery is a significant benefit. Instead of being the domain of the wealthy, it is massively more available to the average person.
"Living wage" is used to argue that people are owed wages higher than the market would actually pay. Lots of jobs pay vastly higher than living wages - not for fun, but because the supply of workers is more scarce and the economic output of the job is higher. Minimum wage is how we as a society have defined a floor for what is an acceptable job, which I think is intimately associated with the construct of a living wage.