Why assume he wasn't paid? I find it hard to believe that such a well-organised plan would hinge on being able to browbeat a lowly employee instead of rewarding

Why assume he wasn't paid? I find it hard to believe that such a well-organised plan would hinge on being able to browbeat a lowly employee instead of rewarding him handsomely. A $15m operation could spare, say, a hundred thousand (a small fortune in Turkey).