Is there such a thing as constructive jealousy or envy?

Everyone seems to have their own definition of what jealousy or envy means. I think that to some extent both of them have over-lapping meanings. One way to put  that is at the root of both of these attitudes there is this idea of "I want what you got...I am not happy that you have that instead of me." Both of these seem to stem from a  deep seated "me" attitude. Like seriously why are we are always over-concerned with ourselves? No easy answers  here but if you struggle with jealousy or envy or know someone that does then try to help them channel their energies into being more generous and less self-centred...then of course wait and see what happens.