Do you make a movie to entertain people, to say something to society, or both?

Hollywood movies seem to be all about entertainment, but in my experience it's beginning to seem as if the process of coming up with a movie script is so thankless and painful that one may as well write the script for one's personal enjoyment and hope that others will equally enjoy the story. It's unlike other businesses in which you can just ask your customers what they want. People are vague and unhelpful when it comes to movies.

How does one balance these two priorities when choosing a concept for one's movie?

Thanks for that. "A little bit of both" is a good answer, but how does that work in practice? I'm still trying to figure that out, but I'm beginning to notice elements in my story pitches that are related to certain personal experiences. Maybe that's what gives one the stamina to follow through with a story.