Good point, but I don't think TBL or whoever else started building the Web with him at the time thought about advertisement or how content providers could make

Good point, but I don't think TBL or whoever else started building the Web with him at the time thought about advertisement or how content providers could make money. Same story now. I think we can leave that problem to those interested and surely enough ads will find their way to any new medium. It's a technical problem literally.