Unfair or not, it's the reality of things. The only way consumers have to tell companies "don't do that anymore" is with their purchase decisions. Sure, Companies have a lot of internal colors in them, but what materializes into a product is what counts at the end of day. I can't just make a purchase decision based on "Jonny Doe at the Sells Department is a really good chap".
You can say, though, companies are better or worse than others on how they react to blunders like those. You have response times, the type of resolution to the issue and if there was any legal action required for them to acknowledge the blunder. Just keep in mind they are still fighting for your hard earned cash and you must protect your money. As creepy as it might sound, it's the first and most important line of defense you have against the bad apples in the corporate world: make sure they make things "right".
And yes, most of the "evilness" in Companies concentrate in their Marketing departments; I wholeheartedly agree with that
Cheers!
EDIT: Typo.