Videos are certainly off limits as a nuisance. However images convey a lot of information very quickly, and can be visually "skipped" in a way text cannot.
When presented an ad for protein powder alongside my workout diets article, I want to see what it looks like. The presentation of the product is an important factor in whether or not I pursue it.
It has to be remembered that advertising is a three way relationship, and all three stand to gain (presuming no scam). This is more complex than financials - displaying an advert leads to a bi-directional association in the consumers mind between the entity being advertised and the entity advertising it. It is beneficial to advertise products that have Brand values similar to yours (or ones you want to appropriate).
In all cases it can benefit the user to be advertised to as a means of discovery.
Many of us forget (or do not realise) that there are (and historically were a lot more) "papers" proudly proclaiming themselves "advertisers". People willingly read pages of adverts in order to discover products and services.
Anyway. Keep the image, it's worth 1000 words.