Have Marlow and Kurtz mastered the art of seduction?

In my essay, the topic I am going to investigate weather or not Kurtz and Marlow had different secret wishes that could only be able to be accomplished in the darkness. Literally the darkness is when we are sleeping and when metaphorically the rules are gone, so does Kurtz and Marlow have secret desires that they want to pursue.  Knowing that the darkness is the only way to pursue these dreams, the same way you know that these dreams are desires that would be unattainable in "light" knowledge and sophistication.  So does Marlow and Kurtz have to make themselves seem less knowledgeable in order to subconsciously pursue their desires.  We are unaware of this but do we dumb ourselves down to seduce people into doing what they want for both Marlow and Kurtz.  And these secret desires can only be attained in the darkness.  Is going to the darkness, losing the knowledge, a seductive tactic by Kurtz and Marlow in order to achieve their secret desires and then go back to reality when they are back in the light.