First of all I would like to take on those guys who have bad sense of smell, these guys dont even understand some people have some sort of allergy to a specific smell or scent, in place of finding their different allergies they starts blaming the aroma of a scent.
Now I would come to the topic, since ancient times perfumes and scent have been a legal tender for women. No one has ever cared for men but since time has changed now, men now even want to look beautiful rather less handsome is quite acceptable. So appearance cant be perfect without a tempting smell thats where HE perfume comes in. It is a perfect companion for handsome and macho personality seeker guys.