Right thrust is not used to compensate for engine torque. The torque of the engine is aligned with the roll axis. Right thrust imparts a moment to the yaw axis. The reason a single engine, single propeller aircraft turns left (when the prop spins CW as viewed from the cockpit) is because we have been building airplanes for over 100 years with half the vertical stabilizer missing. This is done to make the airplane easier to get into and out of and rotate for take off and landing. As a consequence, the airplane flies in a circle. As the air leaves the propeller it curls down the fuselage (spiral propwash). When the air gets to the tail, it beats against the left side of the vertical stabilizer. However, there's no corresponding lower vertical stabilizer for air to beat against the right side of. This results in the plane turning left. Since the problem is power related, using right thrust to compensate is the right thing to do. Angling the vertical stabilizer is not. It's a dynamic problem and requires a dynamic solution. Modern pattern planes have counter rotating propellers and require no right thrust. In spite of the fact that they still have just one motor spinning in one direction producing lots of torque.