I have had MANY dealings with Enron over the years, including a major one with one of it partnerships that brought it down. I can tell you that just about everyone who dealt with Enron in business felt that they were just too aggressive, that morality was irrelevant, and hosing everyone they came in contact with was important. I never trusted them and I didn't like them. It was their entire culture.
Fortunately, there aren't too many other Enrons out there with that attitude that I've dealt with over the years, and I'm glad to say that every single one of them is either bankrupt or heading there fast.