The is-ought divide cannot be breached except with an assertion, an assumption, of moral value judgement, or of objective observation of an existing moral value judgement. Economics studies people's value judgements and is the closest thing to "objective morality" that we have. Nothing is objectively good except in that it objectively is valued by some entity or marketplace as good. But you can use that to derive common solutions to common problems of morality thag people have. Libertarianism with sound money satiates the vast majority of moral values of people greater than any other system.