Modern Ethics I'm still trying to work out a cogent view, which is why I posed the question (for what purpose who knows, but its entertaining me), so these are my initial thoughts based on the not too bad parameterizing of the issue you guys put together.
In ancient Athens, a society with only a few thousand politically active citizens, the individual was viewed by Plato and Aristotle as a microcosm of the state. The individual's obligation was to be virtuous in personal relationships, basically simple manners capable of being explained as a set of guidelines a la Nicomachean Ethics, and to use politics as a means of securing an environment where virtue is possible, by education, enforcement, structural organization, and in the leadership classes, deep reflection upon one's own values, motivations and purposes, like in The Republic. If all individuals were virtuous by training and also by ethical reasoning as a kind of practical problem-solving about the consequences of actions, in essence intellectually deferential to the attitudes and experiences of fellow citizens, then the collective would be virtuous as well, upholding virtue as culture. This is probably very similar to Kant's categorical imperative: if an individual can will an action of ethical import to be a universal law, then it is moral by way of the fact that what works for the whole will work for each individual as well, and we have a duty to conform to these minimum principles, standards adequate in the vast majority of cases. This is all also similar to Christianity's golden rule, love your neighbor as yourself, the idea that everyone is obligated to act in ways of benefit to the whole community.
As far as I understand it, utilitarianism claims that what is best for the majority should be the standard, and "best" means what brings pleasure, not only to oneself but also the collective. The tacit idea I suppose is that human beings are very similar in their basic experience of pleasure as satisfied by material and social needs, and so in many domains a majority is a nearly absolute majority: food, shelter, clothing, health, security, friendship, community, etc. In this case, the individual is a microcosm of the collective to a more limited degree.
Then we've got Nietzsche, who claims that morality is a product of authority, in the form of prehistoric social mores and then a revolving door of oppressively self-serving upper-classes, forging populations by comparable methods of pain-infliction into having similar experiences and behavioral tendencies, with moral standards basically being criteria for submission, which over the course of millennia narrowed the human trait profile in an evolutionary process until some cultures with universal values were possible.
In the first case, the individual is a microcosm of the collective as a consequence of absolute human nature, in the second case, the individual should consent to the collective as a generally practical expedient, and in the third case the individual is coerced by social power into submitting to the collective.
It is interesting to note that this trajectory into relativism parallels the progression of Western civilization towards greater multiculturalism via colonization and conquest. Ancient Athenian citizenship was uniform culturally, John Stuart Mill's England was ethnically homogenous with some class differentiation, and Nietzsche's imperial West was extremely diverse culturally. Ethics become more complex with increases in sub-cultural heterogeneity.
The initial European solution, as was alluded to by someone in an earlier post, was the formulation of universal laws pertaining to ownership, based on the concept that the standardized economic value of material goods is under the protection of the government as personal possessions, the sum of which are an individual's property. This bypassed the thorny, still highly speculative psychological issues, defining ethics solely in terms of universally recognizable inanimate objects, but it also subjected human behavior to a poorly understood dynamic of international commerce.
This property concept, the idea that material objects are a symbolic representation of one's self, seems to be extremely appealing to the psyche. Most human beings love flashy materialism and a culture based on commercial fads. But the process by which economic conditions change is accelerating in thus far unpredictable ways, meaning that massive amounts of new material goods are constantly being innovated and mass-produced, so that human concepts of self are in perpetual upheaval and the property paradigm is growing more difficult to manage. Most financial actors and sub-cultures try to manipulate this disorganization for their exclusive, usually short-term advantage, making technological and institutional development minimally ethical and efficient. Can an attempt to induce even further conformity by force remedy this situation? I doubt it. Educated citizens only conform while they're at war, war sucks though the occupation of soldier has so far probably been the most important job in world history, and an uneducated population has become an economic and thus a political disadvantage.
You guys have any insights about this?