Some of the big philosophical problems have been solved by science, at least to a 1st approximation. Examples: the problems of matter, and mind. Only philosophical reactionaries, like Noam Chomsky, claim that they are and will remain mysteries.
Mario BungeUnder theocracies and other authoritarian regimes, the rulers are the moral authorities. Under genuine democracy some basic values are entrenched in the legal system, which is expected to be under democratic vigilance, and others are left to the person or the group, which ideally debate moral problems in a rational, free and cooperative manner.
Mario BungeThe fact is that all the important political philosophers and scientists from the great Aristotle on, with the exception of those of the French Enlightenment and Mill, have sided with the powers that be.
Mario Bunge