Explanation time...
Thanks for the mini-reviews, VS and Starbeast, although I don't think either of you quite hit the nail on the head.
I must say that I was rather puzzled by the two mini-reviews,
Civilization depends on some sort of economic system, in order for labor and goods to be exchanged in a way which results in benefits to at least some of the parties involved. Unfortunately, the love of money is the root of all evil.
In the future, the overseeres of religion maintain control with extreme measures that will indeed test your faith. Money can change even the beliefs of those who are in the highest authority of a religion too. I suppose the Senators will spend, and pay later. Devilishly good.
I can see where religion might have crept in - I used altar, homophone of alter (= change) in the title - but at least on this side of the Pond, the construction, 'sacrificed on the altar of...', rarely has religious connotations. As for the love of money being the root of all evil, rather the opposite is the case, as I will explain.
Anyway, what was it all about? Galactic hitchhiking, obviously, at least in terms of context, with (an) Arthur appearing, together with the Triganic Pu, a unit of currency equivalent to eight Ningis; a Ningi, as some of you will recall, is
a triangular rubber coin six thousand eight hundred miles along each side.
So we have a world on which a despot preys on its population. Being consumed by his own greatness, and being one of those evil people who don't think they're evil (and possibly being a bit delusional), he doesn't consider that there might be consequences following on from his selling (at a very high price: four Ningis) of the archives that contain the catalogue of his misdeeds. But there
are consequences, and the Triganic Senators, having read those archives, have come back to deliver them (real change being of somewhat greater value than a mere four Ningis).
So in a way, the despot's love of money is the root of the his forthcoming overthrow.