I don't see the connection. The all-zeroes launch code wasn't an instance of idiocy, it was a deliberate choice by military commanders who felt that codes would make things less safe, not more, because they saw the Soviets as a far greater threat than a rogue launch by their own men, whom they trusted completely. It's not like the code could be entered by random people on the street, if only they had known the power they held. You still needed physical access to the launch control rooms, which had a great deal of physical security and were always staffed by at least two people at any given moment.