The ideological opposite to corruption is the set of all correct behaviours. This is like a opposition to law and order being seen as a political stance, meanwhile its a society per-requisit.
I was mostly writing this comment just so I could continue the comical tendency for 'ideological' to get more and more misspelt every time it was used.
That said, I don't think I agree with this idea that the dominant ideology is no ideology at all. It seems a bit like the tendency to think that one's own accent is no accent at all.
At the most basic level maybe, but at some point they're not worth talking about at the same level. Saying that someone thinks we should exterminate a race of people may be a "political stance" by the most strict definition of the word, but calling it that casually elevates it out of the heinous area in which it belongs to something similar to people arguing about infrastructure spending priorities.
There are certain "political stances" which cannot coexist with a peaceful, modern society.