Why shouldn't everyone care about getting paid as much as absolutely possible (i.e. the only meaningful definition of "not underpaid")? It's a somewhat free ma

Why shouldn't everyone care about getting paid as much as absolutely possible (i.e. the only meaningful definition of "not underpaid")? It's a somewhat free market, shouldn't we all be striving to maximize our take? Or are you suggesting that the central planning committee should be handing out salary guides?