Well, I was writing an article on my blog, Way2Cash.co about memes and while researching about it I found out that they can effectively used to generate likes on a page. If we replace our regular updates of the page by images implying the same thing with memes, then it can reach a huge crowd. Also, memes are free from DMCA, so you can get images without fears of copyright infringement. xD Please correct me if I am wrong. P.S. You can also read my article about meme, titled "Need to generate traffic? Bring out the memes".
Well, I am agree with the first half of your content, but I can't say anything about DCMA policies and its restriction regarding this. I would have to research on this first. Azee