I think there is a subtle difference, jealously springs out of a feeling of entitlement while envy is not as bad, coveting others' success. In any case, like Halloween Astronaut said, it's normal, and you shouldn't castigate yourself for those feelings, and envy is often a motivator, I want what that person is having.
But I think you're on the right track about community and collaboration. It's easy to look at celebrities and feel it's unfair they have so much success, but personally, although I'm not that interested in collaborating on specific projects, I'm inspired by people here and those I follow on twitter, as I can see the effort and learning they put in and the help that they put back out into the community, so I'm rooting for their success, even if I'm mildly envious when they achieve it!