Some people are able to vote not guilty for a defendant they despise, because that's what you're supposed to do as a juror if the facts dictate. If you're not able to do that, you have no business being on any jury, whether the defendant is a bank or a pauper. And even if you lie during voir dire (which is a crime), with a presumption of innocence all you'll achieve is a hung jury.
And, civil or criminal, if you think that sentiment doesn't come into play, then you probably think justice is blind, politicians don't lie they just over promise, and that the markets are rational. What a wonderfully, blissfully ignorant state to exist in.