They certainly did. There were even analysts who questioned whether Enron was all smoke and mirrors before it collapsed. Even some accountants at the firms signing off on Enron's financials raised questions about what was really going on. The very people - the analysts and the accounting firms - who were supposed to be putting Enron under scrutiny, were feeding at its trough and looking the other way.
By pure chance, The Smartest Guys in the Room was on TV here the other night. It remains a compelling story, but the fact that the whole sub-prime mortgage collapse thing was able to happen in a post-Enron world convinces me that people really are doomed to repeat the same mistakes.
My point is, no matter how well known the entity is, crimes like that will be committed, and guys like you will find a way to blame the victim. You could probably look at most fatal shootings and find a part during the victim's day they should have done differently to avoid it. Sometimes it's just being in the wrong place at the wrong time, but if you aren't a victim you can enjoy a sense of intellectual superiority, right?