The clutch disc and dampener spring assembly has to operate the same way in response to torque from both directions. They have no orientation. You load the springs one way during a clutch "dump" and the other way if you do a sharp "compression brake" or downshift maneuver.

besides that, their other job is to even out the non linear rotaional speed of the engine. If you were to accurately graph the crankshaft speed of an engine idling you would see that after each combustion event the crank spins faster and slows down again within miliseconds. The clutch disc is "wobbling" all the time back and forth in relation to the crank evening out that resonance. Meaning, the clutch has to be deisgned to absorb a load in both directions equally.