So, on the CW rotating prop disc, why doesn't the asymmetric lift occur 90degs later causing a pitch up of the a/c?
Perhaps gyroscopic forces are not particularly noticeable because the propeller is light and small compared to a helicopter main rotor.
The aircraft will still yaw left in your example because of couples and moments, not gyroscopic forces. At high angle of attack the line of thrust physically moves to the right, while the line of drag doesn't move significantly. It's not a gyroscopic yaw to the left, but a force couple causing a yawing moment about the CG.
With very powerful engines mounted on very light airframes, the effect you describe would be much more noticeable. High powered aerobatic aircraft use gyroscopic forces to do more whacky manoeuvres - the lomcevak (sp?) is one example.
HTH,
O8