I tend to believe so. I don't believe that the idea of original sin is incompatible with an innate human goodness. We are created in the likeness of the ultimate good, after all, and fallen is not the same as bad.
^ I agree.
Humans in our fallen state have allowed our search for various goods to be twisted into wrongs. But every sin is still at some level a distorted attempt at some good.
May I point out that in the Biblical story of the fall, the serpent didn't tempt Eve directly with the idea of sin, but with the idea that the forbidden fruit was actually good. The Quranic story is similar except Iblis (Satan) didn't take a serpent's shape, and he tempted both Adam and Eve equally.