Can advertising sell any product?
No. Certainly not.
Every week, many new films release. Most of them spend a lot of money on advertising and other promotional activities. Their stars try a lot of different tricks to attract the audience to watch the film. But still, most of the films fail at the box office. They don’t make money.
Advertising or other marketing gimmicks can’t save a bad product.
(Expert advice to GROW your business wherever you are, whenever you want.