On the analogy of haves and have-nots you would use wants.
Be careful, however. This construction is not "productive", so the coinage will only make sense if you introduce it in the company of its contrary, want-nots before you use it by itself. If you don't make it clear that you are relying on analogy with an established use, readers will take you to be using wants in its ordinary sense as a noun, the things which one desires or lacks.
Also, you should avoid saying The wants want to earn more; it is very poor style to use a word twice in different senses that close together, except for obvious (and successful) humorous effect.