[elsewhen]

this is true, but the most you can save is 100%, but earning potential is generally unbounded. if you do not have marketable skills, then saving may be the only way to go, but if you can develop a valuable skillset, you can earn significantly more than you can save.

[kamaal]

Firstly they are not mutually exclusive.

Secondly, though there is no upper limit to how much you can earn it rarely works that way in the real world. People who are not saving money are doing it for many psychological reasons, like being unable to resist the temptation to spend on things. And most of the times they don't like it after they do it.

[Lockyy]

Earning may be unbounded but so is spending. Unless you have a baseline lifestyle that you maintain then any increased earnings will just be eaten by increased spending since you'll already have convinced yourself that saving is pointless.