And this deal with Eugene is a perfect example of one of the things that really bugs me between the comic and the TV show. Character development and "fleshing out" seemed to be a popular discussion earlier with Beth, but then you have this character from the books that has much more intimate development...but is left almost as an "unknown" in the TV show, enough to where people are just like "Kill him." It's a problem I have where they are trying to flesh out TRULY useless characters, but kind of miss the target with far more important characters (IE: The governor...they failed so badly at that compared to what it should have been, and I feel it was all because of how they set him up).
Eugene was not a scientist...this is a fact across both universes, but in the TV show, he actually BECOMES a scientist of sorts...doing various studies and observations of the zombies, even at one point figuring out that they actually need nutrients from the flesh they eat, and shows how a sample size of zombies who did not were all limited in mobility and energy...vs. another group who were well fed and were quite mobile and actually FAST!
There were other examples of this, but you get the point...the TV show fails to expound on this, thus making the characters minuscule compared to what they were written to be. Now to be fair, you can never expect a movie or TV show to meet the kind of depth a book can simply because of the limitations of film/TV, but if you have the time to waste on a character like Beth, who simply isn't interesting compared to MAIN characters that should be there...you can spend time on someone like Eugene...or the Hunters for god's sake.
I hate complaining like this because I know it gets annoying to those who haven't read the comic...but I think they pick and choose who they want to focus on within this story, and sometimes they don't choose so well. That or they have someone writing the scripts for the TV show who feels he/she is adding their own lore to the story, which is fine, but they need to make sure they also keep the existing lore in perspective.