Different Level

Why does Parshat Korach follow the episode of the meraglim?  Rashi says the meraglim should have learned from the episode of the tzarat of Miriam not to speak loshan harah about Eretz Yisroel?  How could such great people speak negatively against Moshe and Eretz Yisroel?  My wife's uncle explained that what Miriam and the meraglim did not understand what that there was a level of kedusha that was beyond their grasp.  Miriam thought that I'm a navi and Moshe is as well, maybe a greater navi, but we are in the same catagory and should have the same rules.  She couldn't understand that Moshe Rabbenu was in a category by himself and had his own rules.  Similarly, the meraglim thought we are living a holy existence here in the Midbar, there is nothing to be gained by entering Eretz Yisroel, so they were critical of it.  They failed to see the great kedusha present in the Land.  That may be the continuation to the parsha of Korach.  Korach recognized the kedusha in everyone and thought we are all holy, there is a hierarchy.  He did not understand there are levels to kedusha and just because one individual is kadosh does not put him in the same category as one whose kedusha brings them to a different plane.