Goodfellas, along with The Godfather, is one of the few motion pictures that's as good as the book it's based upon, even though the book itself is riveting.
One of the few novels that make an even BETTER movie.
BTW, Henry Hill in the book, and to a lesser degree in the movie makes it look like he's the only one with some kind of "conscience".
Plus he never "admits" to killing anyone.
But he obviously did.
Don't tell me he only drove the cars during these crime sprees.