I think, I hope I come to your rescue HalLane!
Just checked my video of Q & THE PIT(ho,ho) At the end with all the killing going on, Quatermass is under the martian spell too, Dr. Roney slaps some sense into him. He snaps out of it.
Quatermass: I wanted to kill you.
Roney: Why?
Quatermass: Because your different.

I think I know what your talking bout' HalLane...At some point in the film they're talking about selective breeding or something like that...I'll keep lookin'...I know you know what your talkn' bout'!
Also not to really make a joke or be funny but..... The one guy that is shown to be killed by the hypnotized crowd really looks of the Jewish stereotype, with a big hooked nose and glasses. It just made me think about that damn subtext!