Tenet is pretty much about power and greed too. Sator’s greed for power. And hatred for the world we live in.

The backstory of him being helped (and commanded) by people from the future who want to reverse time because we fucked up the planet and therefore life in the future is shit, is pretty much just about climate change.

The movie wasn’t that deep tbh. Nolan throws in some time inversion stuff for the wow factor and because it looks cool, but tbh it’s just “let’s blow up the world to fix a big problem” (classic case of a villain with a relatable goal) vs the good guys with “the world has loads of people living in it, we can’t just blow it up”.

Personally I liked it. Don’t think it was a cinematic masterpiece you need to be incredibly cultured to understand or anything though.