Having ourselves turned into dirt — or worse — reflects at least an implied philosophical view that it doesn’t ultimately matter that we ever existed.
Without free will, there is no guilt and there is no innocence. There are merely animals to be managed.
Think, for example, of the late Stephen Hawking and how his fevered pronouncements in his final years were received.
Richard Dawkins lashed out at Pope Francis for the latter’s comparing modern eugenic efforts to Nazi precedents that sought to “create a pure race.”
He thinks we are just a collection of carbon molecules and certainly of no intrinsic value simply and merely because we are human.