Did he defend that system though? Or did he just state that this is how the world works?
From a realist perspective, Aramaki is absolutely correct. The government does survive off of discrimination, they do rule the world as gods.
I don’t think Aramakinsaid that this is a good thing, but that this is how the world works which is factual.
He seems very eager about enforcing this status quo.
If you don't try to change things at some level somehow, then you're complacent with said system.
There's no "neutrality" against tyranny.
Fuji tried to "clean house" by going against the Shichibukais and their privileges.
Aokiji, despite "following orders" did many things with a heavy heart, and he was the "moderate" choice compared with Akainu.
Then we have Akainu, Kizaru and Aramaki.
These 3 seems totally unaffected by the problems. We could make an argument about Akainu and his "clashes" with the Gorosei, but it's hard to say if he doesn't just want free pass to start wiping pirates left and right. Let's not forget that he blew a ship with a whole population based on a CHANCE that one of them could be a historian from Ohara.