This is interesting because some designer brands have a beauty section for perfume etc, while some brands have perfumes listed as accessories on their website .
For example, Givenchy has Givenchy Beauty, which has its own website. I think some brands have a more established beauty sector and specialise more in perfumes than others. This is common with the oldest houses like Chanel, YSL...
Not really, perfumes are like beauty products that make you smell nicer. The aura that a woman/man project's or leave behind when wearing a nice scent, is part of the appeal and what make you noticed