"We think we can make advertising great" - every ad tech company for the last 20 years.
And yet adevrtising isn't great, and for that matter never has been. Ads are never the amazing assistant who knows just what will make your day better, they're a distraction stealing your precious attention to try to make you want something you were perfectly happy without a moment ago. That said, I respect Brave for letting me run uBlock Origin on my phone.
As bad as advertising has got, in its essence it is to inform you of things that you didn't seek out. This can be a good thing like public service annoucements or products/services that you may not have known about and very related to the article you're reading at the moment.
Unless we have a way of running an economy without marketing/advertising, we should try to make advertising better by whatever means we can imagine until it is.