Saruman would be a loan agent for a bank.
Balrogs could direct traffic- I can see it now someone steals a redlight and CRACK a flaming whip demos the car.
I don't know why but I see gandalf in a rehab for alcoholics As bilbo offers a drink "DO NOT TEMPT ME"
Orcs would work as garbage men it would cut back on landfills as they would eat half of what they get.
Denethor of Gondor would be a school principle.
The nazgul would be lawyers(I wonder who would show for jury duty?)
And finally Sauron could be a lifeguard at a beach