I generally get the feeling that people were way more wreckless before the 80's. The level of technology at the time is surprisingly low. Card catalogs and the dewey decimal system represented a nominal level of information technology, rendering many audit trails nearly opaque.
Of course, physical, structural security was bad too. Break a window and climb on in, just repair the window when you leave and maybe that'd be enough to capture some records. If it wasn't a bank or a prison, a building probably wasn't a fortress unless it was extra special.
People cared a lot less about how life turned out 40 or 50 years ago. Alcohol, tobacco, diseases everywhere, and medicine was kind of terrible. You get a feel that risk taking was normal.
Now, people clench up at the thought of breaking any rules. Call it the new technological superstition. We don't believe in god, but we believe in logs.