First when most think of waiters they are thinking of someone in a place like TGIF's or the high end types. For the HOURS THEY WORK, most of those will hit minimum wage. However, for higher end waiters they are not in it for minimum wage nor should they be expected to make it.
What people don't picture is that lady that doesn't look so hot that Fridays and the like won't hire. She has kids so she can't work nights as evening care is something she can't afford. Fortunately the school has their own after school programs so she can get a couple more hours in.
She ends up with about 10 hours or so. Most of the good lunch crowd asks to be sat with other 'better looking waitresses'...she mostly gets overflow.
At the end of the day she may have had 30 tables if she is lucky and many were coffee only. She walks out with $50 if she's lucky. With new laws the minimum wage for servers is the current minimum wage minus 31% (it's assumed they will make at least 31% in tips).
Even if the waitress made $6/hr at the end of her day she just netted about $11 an hour for pretty hard work.
Some days she only gets a couple tables and falls short.
I don't know any server that ended up with a bad week that went to their boss and asked them to make up the difference. I am sure if they did do this, they'd start not getting hours.
There are a lot of struggling waiters out there. All those little hole in the walls that barely survive.
I really doubt Heller makes $400 night regularly. It's like pizza guys saying they make $50/hr when it's based on 3 hours on a friday or saturday rush.