Maybe you are not valuing your own resources enough. Ads draw time, concentration and other mental resources. So i can only believe that it will be a net-negative in the end. It can feel rewarding, but financially, the advertiser can't pay you enough.
On another note, I've always thought the idea of constructing your own ad profile could be interesting. Like selecting the types of products and related content that you'd want to be pushed.
From my understanding this is kind of the goal of social apps but it's obviously not self-directed. I guess it is in some capacity based on your behavior but it's not like you're intentionally clicking selecting you'd be interested and actually would maybe buy.