I keep coming back to Robert Eggers' The Northman for what this film could have been.
Eggers does not flinch at depicting the brutality of the culture in which his story is grounded. The audience is asked to really look at it & accept it as fact. The viewer is not expected to *like* what they see, but they are expected to deal with their own discomfort.
Eggers doesn't provide a modern moral to his film, but through his depiction, he brings a much older culture into conversation with our own.