That's how Emacs works though! There's a bunch of TeX junk in Emacs but since I never use TeX, Emacs never loads that lisp. It's just sitting around in a directory waiting in case I do need it at some point.

And Emacs has a command line for its stuff: "M-x".

And if you really want to have separate executables you can do that with small 'emacs --eval' wrappers.