Ads aren't necessarily a bad thing, they can be incredibly informative or entertaining in their own right. I mean, have you watched a movie, TV show or game trailer at all? That's an advertisement, yet no one would say all of those are manipulative.
Something like this is almost entirely informative for someone looking for information about the product:
https://www.youtube.com/watch?v=zw47_q9wbBE
https://www.youtube.com/watch?v=5kcdRBHM7kM
And the same goes for quite a few trailers and ads. Oh sure, they obviously want you to buy the product, and will pick the best footage to make it look good, but they also act as a nice quick summary of the story and what you'll actually be getting from it.
It's why even the BBC are fine with advertising their own shows in the same way.
https://www.youtube.com/watch?v=njNnTDiLOd4
And let's not forget how oftentimes these things being posted can be seen as a big event in itself. Something like E3 or a Nintendo Direct is literally just advertising for the company or companies involved. Yet millions of people treat the advertising event in the same way as a hotly anticipated TV show or sporting event, because it provides them a way to see what's been worked on and find out more about something they're interested in. Same sort of thing with the Superbowl ads being a draw in themselves. Or how Disney releasing a trailer for the next new Star Wars film would cause a huge reaction online.
So ads in of themselves aren't necessarily a bad thing. They certainly can be if they're exploitative (like, payday loan advertising or sugary foods being advertised in kids shows), lie through the teeth about the product (like No Man's Sky and Aliens Colonial Marines) or harm the consumer or their property (like malware ads and tracking online), but they can also be an art in themselves and a perfectly valid way of learning more about a new product.
If online ads were relevant to the content, didn't track the user or try and run scripts on their machine and worked about the same way they do in a real life newspaper or magazine (or the trailers before movies) then that would be acceptable and rightly classed as 'better'.