There's been similar moves in the past. Most famous of which is Ford's $5 / day. http://www.saturdayeveningpost.com/2014/01/03/blogs/post-per... Ford's quote from the time is relevant today: “The owner, the employees, and the buying public are all one and the same, and unless an industry can so manage itself as to keep wages high and prices low it destroys itself, for otherwise it limits the number of its customers.…
and thus grew the middle class. The middle class is something we truly need to focus on growing again.
But that's the problem with things like this. We keep focusing on the top and the bottom but not the middle.
So we pass laws purporting to tax the rich (but really anyone with a full time job) and then the rich hire accountants and only the middle class pays. Then we clamor for a higher minimum wage, but the middle class already makes more than minimum wage, so the effect on them is to raise the prices they have to pay.
What we need isn't just to get the people at $10 to $15, it's to get the people at $20 to $35 or $50.