They should... and we all have our busy days and our slow days, but even at 10k, I'm sitting in my office a lot more than I would want. I can only imagine how much real work is being done if they are collecting ~3k/day. I guess they probably are sitting in their office most of the day doing nothing.
PPO fees are closer to 50-70% office fees, but even then, looking at the time it takes us to do procedures, there's still plenty of time to do work.
I believe it is a combination of things that make dentistry perceivably worse. First would probably be incorrect reporting of median/average wages... back to the whole W2 thing. Second could be that some dentists are just slow as molasses. Third could be the lack of quick, profitable procedures such as crowns, RCTs, implants and/or lack of patients. Lastly, we don't have an idea of if these are a survey of all types general dentists (retired, academic, not practicing), FT/PT, private sector v. public sector, number of hours worked per week, years of experience etc.
I'm still really skeptical about that mean/median, maybe these 120k offers are for newbies and set as a low minimum as the bar for new grads is pretty low to begin with. If
@JacquesVallee is right about this, then yes, being stuck at that payrate makes absolutely no sense. You might as well go into something that has a low cost/barrier to entry and higher potential. YMMV in dentistry, I suppose.