GR translation: the Götterdämmerung mentality

[Mike Jing]

P165.17-24  The big scandal around IG Farben this week is the unlucky
subsidiary Spottbilligfilm AG, whose entire management are about to be
purged for sending to OKW weapons procurement a design proposal for a
new airborne ray which could turn whole
populations, inside a ten-kilometer radius, stone blind. An IG review
board caught the scheme in time. Poor Spottbilligfilm. It had slipped
their collective mind what such a weapon would do to the dye market
after the next war. The Götterdämmerung mentality again.

I saw the reference mentioned in the Companion, but what kind of
mentality is this "Götterdämmerung mentality" exactly?