Scantily dressed women have been used to sell alsorts, so it doesn't really seem odd to me. Maybe it's because I'm a little older than you and I've been exposed to this form of advertising for many years.
It has gone on forever........ the power of sex appeal.
As an 18 year old, nearly 50 years ago, I remember going to The Motor Show at Earls Court, London and being shocked by the scantily dressed girls lounging on the cars. Remember this was almost the dark ages when a glimpse of stocking was looked upon as something shocking lol !!! Make a good song that would !!!
Just look here........
Though I do agree with you that in most cases sex in adverts is not nescessary and good product will sell itself.