There is no PROOF of corruption! Only ONE character's speculation, and that a military officer, rather than any philosopher, theologian or other sort of professional scholar who might have expertise.

What elements? Which ones? Citations?

There is no proof that EITHER has been altered.

Who says it is oppressive? Or a caste system? There are slaves, commoners, and nobles and only degrees among the first and last. As for the system, there is no proof of oppression, only a remarkably popular monarchy, a people who have widespread freedoms, nobles who are remarkably constrained in their ability to abuse their authority (Suroth is unable to discipline her vassal ruler's servants, for example), and evidently a loyal populace that is trusted to colonize foreign lands. The military officers are embarrassed about discriminating between troops from Seanchan and locals. Oppressive regimes with competent militaries have officers who pay lip service to policies, but among themselves look askance at ideas that interfere with practical matters of that nature. Oppressive regimes keep their subjects under lock and key and don't let them freely settle in newly conquered lands. Oppressive regimes do not allow newly conquered people to swear a cursory oath, travel at will and keep weapons.

As for slavery, it has been a constant for 99% of human history. There has never been a year when slavery was not practiced, there is no continent on which slavery was not practiced at some point within the last 200 years, and there is not a single race that has not practiced slavery on a large scale or has not been enslaved on a large scale. Condemning a regime simply for the practice of slavery is absurd. Your own namesake ruled over a slave state. To call a state repulsive for the practice of slavery is to condemn the British Empire, the United States of America, the Roman Republic & Empire, Babylon, Egypt, Athens and numerous advanced Islamic & Asian states. Our entire culture is inherited from slave states. It's an ugly institution, but part of human nature. It's lack from most of a continent for at least a millennium is one of the more fantastic aspects of WoT, up there with the universal language.

I never said there was any prognostication in them, just that since RJ said the damane are better at Foretelling, the concept is more commonplace and such things are given more credence. That comes from RJ himself, I didn't just pull it out of my ass, like some people here.

And because there are a lot more instances of genuine fortunes coming true, they give more credence to other things as well.