Evaluating art ends up being like evaluating wine. In the end, when you make it past the "nose" and "varietal" and even "color" (do a few black glass tastings and your Chardonnays and Merlots collide more than most know), it is about what you like.
The same is true for art. Norman Rockwell, in his time, was considered to be a sell-out to what we would now call Conservative Values. He wasn't "cutting edge." He wasn't changing the paradigm." But I 100% guarantee his "haircut" is extremely evocative (as a simple example). Art is what makes you feel good.
Art is to you what it is to you.
I can assure you that there is a great deal of renowned fine art that does not fit this description.
Goya, for instance. Some of his works can be downright terrifying in the subject matter and detail. But the vibrancy of the color, the skill and the vision, the balance and composition, not to mention the outrage of the moment recorded so compellingly, you just can’t look away, it’s magnetic.
That’s art.