"To know that you are superior in mind, in spirit. EVERYTHING! To know that power is your BIRTHRIGHT! To know that untold thousands exist on this world for no reason but to SERVE you! To channel their power through YOUR empire, be it of land or of business, channeling upward to fuel YOU, to fuel your GLORY!" - The Mandarin
You love quoting speeches, here's one for you where the Mandarin lays out his motives, and it's the ugliest blend of aristocratic entitlement, Ayn Rand flavored social darwinism, and sheer narcissistic greed imaginable. It's all ME ME ME!! The Mandarin wants everyone to be slaves who only exist to fuel him. Metaphorically speaking, he wants to eat everything. He's a vain, greedy, exploitative, enslaving aristocrat. Sometimes he admits that outright, sometimes he doesn't, but even when he doesn't his actions show it clearly.
"In respect to your valor as a foe, I shall give you a
great honor!! I shall let you be slain by a warrior's sword" (c) Mandarin, Tales of Suspense #54.
"Have you grown so vain? Or has
greed made you...
Imprudent? You show no
honor. And
honor is ALL.
Without it, life is worthless. Therefore, since
you have no honor..." (c) Mandarin, Invincible Iron Man #241.
These two particular excerpts deliberately show that: Mandarin epitomizes himself as a honored warrior who is willing to give his opponent a respectful death by the sword, which is a manifestation of respect in a battle. And it shows that Mandarin strongly relies on the code of honor, and he devoted himself to that, because he is willing to kill one of his henchman because he cheated in a fight with the Mandarin. Again, he follows the principles of honor, though, his actions aren't honored, but it justifies his attitude.
As for the, "ME ME ME ME", it makes sense that it's all about him, since he's a megalomaniac who arrogantly entitled himself as a man who shall subjugate everything and everyone because he is superior.
Also, your excerpt from Revenge of the Mandarin was quite fascinating to read, but how does it proves that the Mandarin doesn't identify himself as Chinese? He speaks about power and domination, but how does it show that he isn't Chinese? Wait, wasn't Mandarin in that story defined with such description, "one of Iron Man's oldest foe's. A crashed alien space ship gave him knowledge and power far in advance of Earth's -- which he has often used in an effort to bring back
Imperial China."?
Also, that image when Mandarin refers to China as his homeland, it's not from Dragon Seed Saga. It's from Armor Wars part II.