I don't know where do you get this idea. Most ads rely on the "successful men" and aspirational living trope. Take the ones with male actors or athletes. What they sell is "if you want to be successful like me, use the same cologne/wear the same clock/buy a new car...".

And then you have the "hacking life " ads. Men who told you how to do what you have always done in an easier way thanks to a product.

The "dumb men" trope only appears in products that try to sell what is boring and a chore as something "cool". As in, "see how great it is to scrub toilets? Dumb men can't scrub toilets!". Well, maybe they are clever enough to not want to scrub toilets. XDDD

But there is also the "competent men" doing the domestic chore as well as their mothers. That is another ad trope.

Of course, the dumb men ad would work well in traditional women who take pride in "women's work". While the "competent men" are aimed at progressive men and women who believe in sharing domestic chores.

For the record, I'm more in the "competent men" field. Domestic chores are life skills and everyone needs to learn them.