Yeah, that's definitely the reason. It's for the good of the company.
@is1026 Yes, olfactophillia I believe. Normally it's more about sniffing their genitals though. Not sure how big it is in Japan but I do notice in a lot of doujins they talk about how the guy's dick smells.
@Is1026 I remember reading somewhere that if you find someone else's smell attractive, this is because their immune system would be compatible with yours. Also, if the scent thing weren't as common, the perfume industry wouldn't exist.
Man, Japan is getting real BLATANT with their fetish manga industry lately, huh? We got foot fetish, smell fetish, hair and back fetish, hand fetish, and even sleep fetish manga all within the last two years.