My (not "the") utopian ideal is one that actively minimizes suffering of sentient life... aiming for zero socially inflicted suffering (war, famine, coercion, etc) and in harmony with the environment (sustainable environmental exploitation). Working backwards involves details of socioeconomic structures and so on... but that's my ideal in a nutshell.
It is subjective. I said that from the beginning. The value of strong principles is being able to make decisions with intent and confidence.
Unless you consult an RNG for every decision, you still live by a set of principles... emergent, unexplored, uninformed ones, but principles nonetheless. Why do you work? Why do you do that work? Heck, why do you do laundry?