I think you are making some unfounded assumptions here. Dr. Arata doesn't have his own clinic--he works through hospitals, where most of the cost is. For instance, for my first procedure he charged my ins co about $6,000, while the hospital charged $33,000. (Of course, ins only paid about 1/10th of that once they negotiated it down. THAT'S where the real injustice lies--cash patients pay more so ins cos can pay less.)
I don't think Dr A's group is making a fortune off CCSVI, and they are taking a chance of getting in trouble with the Society of IRs. And if you knew the hoops they have had to jump through to get my ins to pay, you wouldn't accuse them of profiting from desperate MS patients.