I hear that 5 o'clock whistle in my mind like Fred Flintstone and I have to stop. I'm also not much of a morning writer. I have a sweet spot from about 11am to 4pm. But I really work during that time.
The fact that political ideologies are tangible realities is not a proof of their vitally necessary character. The bubonic plague was an extraordinarily powerful social reality but no one would have regarded it as vitally necessary.