It's like saving a textfile. Do you write a little message every time you save a file? No that's silly. Just move on.
With that said, it obviously is not meaningless at a technical level because without the commit there is nothing to push or merge. On top of that, at a non-technical level it can be extremely helpful to record some plain-english prose to describe why you are changing something. If you find yourself doing that too often you need to narrow your definition of what constitutes a "change" and/or be more discerning about what you work on simultaneously.
Out of curiosity, if you do not use git, what do you use for version control and change-management?