My question is, do you think that certain attitudes of acceptance toward stealing and cheating non-Jews (ie, I know it’s against the bank rules but those rules of the goyim don’t really apply to us anyway) was also a large contributing factor
"[T]hose rules of the goyim don't really apply to us?"
What on earth? I'm not sure if that statement is meant to echo someone else (or another community entirely), or whether that "I" is meant to actually signify
you talking, but even if what you're suggesting is accurate -- and it most
certainly is not,
see, at the very least,
dina de-malchuta dina -- I would hope (and expect) that moral, law abiding, Jews were raised in such a way that they know, even inherently, that it not OK to steal, malign, trick, or cheat anyone, regardless of religion.