The Pleasant Smell Of Rebellion

The Baal Haturim in parshas Noach points out that there are only two times the word וירח is used in the Torah.  One is the possuk (Noach 8:21) וירח ה' את ריח הניחוח and the second time is in this week's parsha וירח את ריח בגדיו.  The Baal Haturim says that is how Chazal (misrash rabbeh) derive that  Yitzchak must have smelled a pleasant smell (even though one mould think a field doesn't smell good.)  The midrash says the pleasant smell was from those  that rebel against Hashem, בגדיו related to the word בוגדיו and then repented.  The midrash brings stories of those that were great sinners and then repented.  The question is Yaakov was a great tzaddik, why is it the merit of the sinners that Yitzchak smells?  And what is the connection between the words בוגדיו and בגדים?  Rav Levi Yitzchak (Noach) brings from his father that the pleasant smell comes from those that have a tremendous yetzer harah but overcome it.  He then cites the Maggid on the verse ישראל אשר בך אתפאר (Yishiayeh 49:3) that אתפאר is related to wearing a garment like in the verse the ויתפרו עלה תאנה.  Therefore, the garments that 'Hashem wears' are from those that have a battle to fight against the yetzer harah (and possibly even lost many battles) but still come out on the side of Hashem.  That is why the midrash relates the garments of Yaakov to those that rebel against Hashem.
What does it mean those that have a struggle with the yetzer harah are the garments of Hashem?  Possibly (at least on a very basic level,) the intent is that garments are what give honor to a person, they are called machbeduseh.  Those that give the most glory and honor to Hashem are those that have a struggle to follow the will of Hashem but are successful at the end.
We could understand the midrash the opposite way.  The point is to say that even those that are sinners still deserve a blessing.  Esav's sins are part of his very essence, he is defined as a sinner.  On the other hand, the sins of Yisroel don't take away from his pure essence.  The sins of Yisroel are compared to a garment that one can put on and shed at ease.  See the Maharal in derush for Shabbos Shuva that elaborates on this point.  This isn't just a little derash on the words but Chazal are highlighting the essence of the difference between Yaakov and Esav.