Your thread is a success - lots of interesting ideas and responses. That said...
Two dictionary definitions:
1. a moral or legal obligation; a responsibility.
"it's my duty to uphold the law"
2. a task or action that someone is required to perform.
"the queen's official duties"
3. something that one is expected or required to do by moral or legal obligation. the binding or obligatory force of something that is morally or legally right; moral or legal obligation.
Your definition is "
a feeling of obligation brought about by expectation that is irreducible".
There is considerable difference between duty as "legally obligatory" and duty as "a feeling of obligation". Both kinds of duty operate among people, but the former has a much sharper edge than the latter.
Legal and moral obligations are
learned, and their strength depends on intrinsic and extrinsic rewards, and other emotional components, like love, fear, loyalty, selfishness, and others. So it's possible that in a given individual or group "duty"may or may not be the single strongest motivator for action.
I say that the right people in the right positions to lead need to stand up and allow us some redemption. — ToothyMaw
On many occasions "the right people in the right positions" have led. The American Revolution and both sides of the Civil War were brought about by the right people in the right positions. Another group of the right people in the right positions brought about the first Gilded Age of excess in the late 19th century and again in the late 20th. We're very much in this period of excess. In reaction, to the Gilded Age excesses, another group of the right people in the right positions brought about a historic, widely beneficial rearrangement of wealth, particularly during the Great Depression, WWII, and the Post-WWII period, running roughly from 1930 to 1975. Around the 1970s, another group of the right people in the right positions
undid the labor/capital/government coalition that had resulted in a major redistribution of wealth from the richest people to the working class.
Everyone involved in all this was doing "their duty" to the group to whom they owed the most
fealty. So, the duties of the right people in the right positions cut both ways. Unfortunately for us, the oligarchs make up most of the right people in the right positions.
"the right people in the right positions" are generally not the rank and file of the people: they are the elite. The American economy was structured to serve the interests of the elite, as opposed to the rank and file. That's capitalism for you. What "duty" means to a capitalist is not going to be the same thing that it means to a socialist. What "duty" means to a member of the 1% or the top 1/10 of the 1% is going to be considerably different than what it means to a member of the impoverished working class.
Socialists and communists talk about "class consciousness" because what your "duty" can or ought to be depends on how you recognize your real position in society. Except for defined legal duties, there's no such thing as a commonly recognized duty across the different classes of people. People who don't know their class elbow from their ass are liable to accept the altogether inappropriate duty to vote for the leading oligarch candidate.