Larry,
It sounds like to your current AME its just a business. I suspect if you will step outside the Mode C veil of O'Hare you may have a better experience.
I am assuming yours is in or near Schaumburg/Chicago. If so, he is in close proximity to O'Hare and lots of Class I and II physicals. And, admittedly, lots of Class IIIs. But, I would be a little surprised if the lion's share of his business is 3rd class physicals.
Incidentally you can search for AMEs here:
http://ame.cami.jccbi.gov/search.asp
Click on their certificate number and it will give you more info.
5 out of the 6 AMEs listed for Chicago (similar for Atlanta) do not hold a pilots certificate. Check the small to medium size towns and the stats are more like 50% (based on a quick nonscientific look around Georgia.) I have absolutely nothing against anyone's business but I personally would support a fellow pilot or former pilot. They may have a better perspective on where you are coming from. I know I would not support one who is against the DL in lieu of 3rd class medical.
I am also not in the AMA nor do I know a physician who is.