yes sm8 males don't have very much smell,and as you know femails smell like hell!!! someone told me you can make canna butter out of males buy i would not bother as the male has very little THC!!
The smell of a plant is actually a pheno it possesses. So depending on the strain, like Diesel, a male/female will stink to high heavens...while a blueberry may not carry the same strong pheno. As said before, males are usually not in the grow room long enough to actually stink it up.