Is it greed for oral surgeons to do this to us?

In order to separate me from even more cash the oral surgeon, who already has my x-rays and can just glance at a tooth and know what to do, schedules me for a consultation which is not cheap. Then , on a different day, he does the extraction when he could actually do the consult, including even more x-rays, half an hour before the extraction.
Is this proof of money grubbing or what? I wonder if this is a new technique or have they always done this?