The old adage about not taking a dump where you live comes to mind.
It isn't smart.
Talk with the player out of game. Post that, if he doesn't want to be part of the group, see about switching to the god of mercantile.
First, no, don't craft for him except at a raised rate. Say he gets 90% while the rest get 75 or at-cost. This is a great way to shift wealth back to you, where you can resdistribute. In addition, any spellcasting he receives, he pays for through NPC pricing to you, with additional "roaming costs" if you're in an inconvenient location, time of day, or in combat. Count your funds religiously so he can't bluff paying you.
Likewise, charge for any services. If he refuses, get him blackballed at your temple.
Nickel and dime him as a means to get your funds back, in other words. If he's robbing you once, you can balance the scales through fees, fines, and interest rates.
Don't forget the interest rates and additional "roaming fees."