The Rev. Martin Luther King Jr. famously said "the arc of the moral universe is long, but it bends toward justice". This is true on a historical timescale, but on the scale of a human lifetime it can, and definitely has been known to, bend towards injustice and get stuck there.

A society committed to the notion that government is always bad will have bad government. And it doesn't have to be that way. — Paul Krugman