I do not agree. If you film something to imitate life, you need to show the character's clothing, facial expressions, backgrounds, etc. Yes, you can strategically choose what to show and how to show it to help influence the audience, but at the end of the day, something has to be there.
On the other hand, in real life, there isn't mood music following you around. Sure, if you film a character driving a car or even just walking around a grocery store, it makes perfect sense to have a bit of background music, because that is how those environments are in reality. But having intense music playing from nowhere during a chase scene or whimsical music behind a happy character skipping through an empty meadow is just as realistic as a bunch of disembodied laughs in the background every time a character makes a joke.
Do you have an example of a film score used to do more than just provide the mood?