A few points to bear in mind:
- This is not writing; this is a native English speaker speaking English. Aloud.
- This is a professional comedian performing comedy. Into a microphone.
- This is a person being paid hundreds of thousands of dollars to say this. On national TV.
So "correct" is hardly the issue.
In fact, maybe being "correct" isn't such a great idea after all.
So much for "correctness".
As to the original question, only the first example may alternate with among
and among all the nominees here tonight, you've made ...
That's a pretty normal usage, summing up a single variable over a multivariate set, and it really doesn't matter whether between or among gets used, since neither of them is designed for statistics.
The second one, however, is a different usage, and I don't think it works with among:
*among dresses, hair and makeup, that's hundreds of thousands of dollars
Note that this is not a single variable summation -- this is multivariate accounting,
and this refers to the bottom line, not just one row out of many.
My best guess is that it's a shortening and paraphrasing of something like
including all the factors - dresses, hair, makeup, etc -- that's hundreds of thousands of dollars
and between got chosen as most obvious preposition, the one that (almost) nobody would notice.
This has, of course, nothing to do with the zombie rule mandating dual between vs plural among.
But then, that's not really a rule of English anyway.