A person very close to me is pretty darn senior at The French Laundry.
Arguably the best restaurant in the world for a long time (yes it spawned a whole bunch of other restaurants...)
But I have some pretty intimate knowledge about their business, and let me tell you - even though TFL knows a ton about cooking. Their payment to the employees and whatnot is not so great.
For example, one of the things they do is put "Service is included" on their menus and such, which gives the customer the impression that tip is include.
So imagine serving a table that spends $50,000 (yes this is common) on dinner -- and they dont leave a tip, and the servers are making $12 per hour.
Seriously - this happens all the time.