Must say I didn't notice either of those when I read Neuromancer. There's some dark stuff here and there but nothing outside of the mainstream. The worst being a girl who seems to be stuck inside a dreamlike world in cyberspace that's rather like some weird form of purgatory.

ISTR some passing mention of e.g. snuff SimStim recordings being available if you knew where to ask? And a deliberate switching off of the life support on a bunch of cryogenically frozen members of an oligarchic family, but the latter is essentially a minor plot point in 2001 and maybe one of the Aliens films...