Herpes wasn't considered a disease at the time. It was not pathologized until later.
It's certainly a manageable one, and the stigma around it is silly, but if the common cold is a disease, then herpes is.
https://broadly.vice.com/en_us/article/ypa8nb/did-big-pharma...
Does it really take a company to make people think of it as a disease?
"Oh my penis feels like it's on fire and oozing all over me. However, I wouldn't call it a disease."