One of the pivotal moments in my career has been when I used Emacs just enough to truly understand what "Emacs is an operating system" means, not just as a joke but as something I could believe in
But you already had an operating system and you could already code... Did Emacs really give YOU any capability you didn't have before? Don't forget this is a text editor, not an IDE or some general purpose automation harness You could add lisp to mspaint and mspaint suddenly becomes awesome somehow? I don't follow the logic
A simple example: I wrote a function that let me highlight an X.509 cert in a YAML document, regardless of indentation, and pass it to 'openssl x509' to show me what it is. This has saved me lots of time over the years not having to copy/paste, fiddle with whitespace, etc. But it's only valuable because the functionality is now right at my fingertips in the environment I'm already in!