Ok, there's no ruler, no universal laws anymore, and so why do you think there will be a new shiny set of rules everyone on the block agrees upon? People are different and even between two people you will get a disagreeing minority... 
I don't see this as a dualism. Like "universal set of rules means everything sucks" and "no universal set of rules means everything is great". What I am saying is that if you have lots of options to choose from, you're more likely to find one you like and agree with, compared to a situation where you have only one set of rules forced upon you.
There are options which cannot be given on an individual basis, so whatever you try (and say about it), there will all always majorities and minorities. You just can't make all people happy, some will always envy other...