As commonly understood, the meaning of jealousy is envy, suspicion, and fear of losing someone or something.
Mostly nothing good comes out of being jealous of others. Envy, often described as the green-eyed monster watches what others have with a desire to possess it. It erodes the soul and destroys the relationships between people.
In rare instances, people can be motivated to do better because they are jealous of the success or achievements of someone they look up to. Though this is a negative stimulus, it can bring positive results.
Another positive implication of jealousy is when we guard something we love from others with an intent to keep it safe. Like a mother guards her child jealously from harm, or that I guard my privacy jealously from probers.
Anyway the common consensus is that one should stay away from this negative emotion.