In "The Butler" the character Cecil Gaines is every working person. That's why the film resonates. And his wife Gloria Gaines is every family member who has suffered because of how the bacon gets to the table.
Whether we are employees or self-employed, like Cecil we embody two faces. One is what we show The Man. The other is our authentic self and that, as with Cecil, has a tendency to cave under the burden of our work identity. While the deterioration takes place, those in our lives tend to be harmed by osmosis.
The job at the White House butler takes possession of Cecil. He can't see beyond that to the needs of his wife and two sons. His life is at the White House, not his own house. But redemption comes, after he admits that he has gotten lost. Before that, Gloria also finds her way out of boozing.
The comfort point in that is we bear witness to how not just a lucrative high-status profession but even servant-class positions can pull us out to an emotional and spiritual wasteland. "The Butler" is not about civil rights. It's about the courage to hold onto our humanity, amidst the challenges of earning a living.