To me, it's pride.
For all the other emotions listed I think of some positive uses, but with pride, I really can't think of any useful purpose it serves.
Jealousy/envy are pretty rotten emotions. I basically see them as being pissed off because you believe you never be as good as someone, or that you can never have what they have. To the extent that's true, yeah, jealousy is pretty pointless. However, if the jealousy is because you haven't got it now, but could, in theory, get it, then I think jealousy could be positive if it spurs you on to greater efforts.
Hate is pretty pointless if hate is all you do. Usually the party being hated is not even aware of it, and if they are, they'd probably be pretty happy knowing what mental anguish they are causing you. There's a lot of truth to the saying "when you hate, the only one that suffers is you". However, if your hatred of something spurs you on to taking action, action that you otherwise might not have taken, well, I would say it's got its uses.
Pride, however, I just don't see any good in it. Sure, you could say you take pride in your work. However, that can often lead people to becoming locked in their position, defending themselves against even the most logical of criticism. Why? 'Cos they take "pride" in their work. Pride insulates one against useful information and that often ends up costing the proud. It's really a foolish emotion, one that we'd all be better off without.
Worry and fear are also pretty bad. Of course, they are essential in some ways. It's probably a pretty good thing that you're afraid of jumping out in front of moving cars. However, it works against us when we imgane all sorts of terrifying consequances for our actions that then prevents us from taking those actions; in other words, irrational fears. Worry, if it's taken to mean concern, obviously has its uses. You are probably right to be concerned about sending your kid off to parachuting lessons with an unqualified instructor. However, worrying about something, and doing that alone, like sitting at home "worrying" about why your girlfriend is late, is she out screwing somebody else, is pretty useless in that it drains you, may not be rational, stresses you, prevents you from working on other, perhaps more important, tasks etc.