Not necessarily to the 'wife of the general dentist getting involved' thing, but with the fact that there are issues inherent with a specialist working for a generalist. Every general dentist around my area would LOVE to hire an endodontist. The issue is, they want high quality endodontics at a budget price. I'm not a budget endodontist though!

I frequently interview with general dentists. Its not uncommon for them to say verbatim, "We're going to do the easy cases. We just need someone to come in and do the hard cases." No way! Thats a selfish approach and no way am I going to put myself into that sort of a situation.

I'm tied up with the military and so private practice is not really an option. But my moonlighting situations are good because they are mutually beneficial, not unilaterally beneficial.

It absolutely cannot work without a team mentality. And it seemed like in the OP that the wife forced the practice to take a selfish turn that was unilaterally beneficial and proved to be a lose-lose for both parties.

The good news, your bro will land on his feet.