Not just the futility, it also subtly depicts the lack of power in a person who has been immersed in an environment that has
* denied them any significant agency
* ambition can only be expressed in a narrow set of avenues
* questioning the way of things is futile
There isn't any person behind the screen orchestrating things, simply each individual doing the "best" they can, and boy, that is a chilling world. Not scary in the sense of horror, just chilling because of the dread it fills me with. I won't say any more lest I give away the ending. The acting left an impression on me, even though I don't remember a single word that was said. Definitely recommended!
Yeah, I love that! Even the judges on the reality show have this air of fear and desperation about them.
[1] There's some debate over whether those are real windows or viewscreens, but since one of those options acts a punch-line to this theme and the other serves basically no purpose, I'm pretty sure we're supposed to take them to be real.