If I may, wouldn't it be fair to say that scientists are predisposed to seek knowledge that proceeds from observation within material existence, as opposed to 'immaterial truths' (such as beliefs--be they sacral/theological or secular/ideological)? That being the case, scientists could take the lead in advocating for an approach to justice that follows from such an observation: human beings have no choice but to effect choices (from Warren J. Samuels). It involves no belief at any point.

So justice is people respecting one another's capacity to choose. I have come to call it 'real justice' because both its determiner (that observation) and its referents (actions--including 'speech acts'--undertaken to effect any choice) are located in the 'real world'.

A society governed by that approach to justice would be structurally indistinguishable from a Liberal society of today, but the functioning of any such society would be transformed. Liberty would be maximized, while 'equality' becomes an unnecessary complication: all that matters for real justice is that the beings involved are humans. Materially, there would be no unemployment or poverty for any adult citizen (while any nation could adopt the economic paradigm) and sustainably would be increased systemically. Also, taxes/public debt could at least be reset at zero (if not eliminated permanently).

if curious: "A New Liberalism" (here in Medium, but--for the benefit of any 'guest readers'--not behind the paywall)