What's wrong with DC Elseworlds stuff

The DC Universe likes to shake things up. This innovative storytelling, these imaginary stories, usually results in some good stuff. Unfortunately, lately DC has decided to do too much in these Elseworlds stories.

It started for me with the great idea of Superman: Red Son but it was horribly executed. The entire premise is great: make Kal-El grow up in Soviet Russia instead of the USA. A fantastic idea. Think of it--just the timing of the launch of the rocket a few short hours one way or another and he lands in the Soviet Union and not Kansas. The entire premise of what makes Superman Superman is called into question. Is it the loving family, nature vs nurture, or the governmental system? Wouldn't that be something? Superman fighting for the ideals of his home, Mother Russia, just like so many others during the cold war days. My beef with the entire book is that I wonder why they had to make a Russian Batman, among many of the other changes they made as the regular DC Universe. Everything else could have stayed exactly the same While the book reads okay in all that regard, I couldn't help but think they missed the greater opportunity of a deeper theme of storytelling that could shake the genre of comic books. What makes Superman Superman? 

Now I am watching the DVD for Justice League: Gods and Monsters. I had no idea what it was about other than an Elseworlds story where Superman was bad. It's a nifty idea--Zod is Kal-El's father because of a last-second switch with the DNA in the rocket. Again, you have a fascinating premise of the idea of nature vs. nurture, whether growing up with the Kents is what makes the difference or if it's in the DNA. Now you could see a real struggle between Superman's wondering whether or not to take over Earth for the benefit of mankind. Because you can clearly see it from that Sinestro-like attitude. If he takes over, it's beneficent, or what he thinks is.

But what does Gods and Monsters do? They add a vampire Batman. They add an evil Wonder Woman. Superman was raised by migrant farmworkers and not the Kents. My question is: Why? Why do they have to add those elements?

Again, it's a good story if you don't question it. But I really think they are missing out on a fundamental idea. What makes these superheroes the way they are? 

I love storytelling. I love What Ifs. I just think they go too far sometimes.