I feel obligated to poke a hole in kewlJ's critique. The hole may not apply, since nothing I'm about to say has been mentioned by MDawg, but I'll give it a go.
Much like sons of sheiks betting outrageous amounts on teams because of a color or a mascot symbol (and it being tolerated because limits are ignored), sometimes it's a matter of context. For example, IF Mdawg's wife or extended family routinely blew large chunks on shopping or entertainment or events at certain casinos (say 30K or 40K a shot, which is plausible if not likely on a consistent basis), then a casino might very well tolerate damned near anything somebody does at the tables. If what's being won at the tables is dwarfed by what's spent elsewhere, or if family connections bleed into the social circles of upper management, then it's possible almost anything would be tolerated at the tables. It's all about context.
This is, for better or worse, the way the world works. With a bottom line and a wink/wink. In fact, if MDawg were a conduit for other, perhaps larger, players, there is no telling what would be tolerated. He could, in essence, be a "super-shill." Someone whose recommendations bring in other players. No law against it.
Ahhhh, some bright souls are suddenly considering what I just wrote as both obvious and possible.
LOL. That's why they pay me the big money.