Composition is also about tension/resolution, much like music. You can increase tension, but that doesn't mean you're actually breaking rules.
At the end of the day, I am actually a rigid rule follower in my output. Most of the rule-breaking takes place in my imagination. I find myself giggling to myself on film sets regularly, for example. Or at bus stops for that matter. This is what gets me out of bed in the morning.
"Whereas an accomplished jazz musician knows the rules, a master knows when to break them."
Which doesn't capture artistic intention, motivation like your notion of boredom, and the implied seeking of novelty, until that too gets boring.
I always heard that as well. Cinematographers love this phrase, but I totally agree. That saying leaves the concept less than dependent on personal experience. I still don’t understand why, but the purest of expressions seem to come as side effects of the engagement process; not as rewards for accomplishments. So, one must engage and be honest as they can with the act itself, which isn’t to say one must suffer, but just aim to be in touch with their own experience with the medium. I will admit I personally suffer, but it’s not helpful.
One of the best parts of photography is the speed at which you can have a conversation with your own visual system, refining it in the process.
Understanding art can be thought of as getting bored and finding something new, which is no longer boring, and repeat. Eventually you find yourself bored by almost everything, but with an intense passion for succinct relatable expression. This is often mistaken for pretension, and many do skip the process altogether; most unfortunately, even people calling themselves artists do so.
My point is all these composition rules are great; it’s invaluable stuff. But, you will get bored of them, and that is the beautiful part.