I thought you were making sense up until about this part. Sounds socialist. Are you talking minimal effort, like if I see someone passed out on the sidewalk, I should at least call 911? Sure.
And while you have a moral duty to render aid to anyone who you don't know or who has not wronged you, you DO NOT have to render aid to someone who owes you a debt of morality.
Yeah, I bet you do. I have noticed this. The "free state" movement is so very interested in the endowments (I picked that word just for you) of being free, but they are almost never interested in the duties inherit to being afforded rights.
The oldest moral obligation I can think of is borne of sea travel. It is just not moral to sail by a marooned person afloat the ocean. No matter the case, you should render aid if at all possible.
But the inherit duties go much much deeper. If people want to admit them at all.
Take property rights. Many people seem to think that a claim is sufficient to stake resources. Be it water, food, land, or even air. However, it was there before any one person, so by taking it you have to agree upon the common terms. Namely, you will not be a glutton. See the because you took what belonged to no one, it is never really yours. However, you can have the highest stake in it. For example, if I was the first to Montana, and so I claimed all of Montana, that claim would not be respected nor should it. However, if I was the first to Montana, and then setup a road system throughout it and otherwise tempered it, then I would have the highest claim. However, if I have all of Montana, and this other person has nothing, is my claim to such volume of resources valid? Definitely not, simple because it will cause conflict. I have a duty to fairly allow this other person the means to acquire sustenance/sustainability. To say otherwise, is to favor the old and foster conflict. Now no one can morally enforce these concepts upon you but, like i said, it is poetic that immoral people have chance to meet. It is a tragedy that immoral and moral people must share their existence.
Now you can claim that you have rights to all of Montana if you purchase it, but again, you can only claim that which you can hold - any more is gluttony. So if you ever find yourself in position to having purchased all of Montana, just know you have now assigned yourself to great responsibility.
Every right has such inherit duties.
Speech has the duty not to spread lies and panic.
Property has the duty of fairness and equity.
Life has the duty of letting other live and charity.
Again, you can't be forced to live such a way, that is not what i am talking about.
Next time you are stranded and a person drives by you will understand from your resentment of that person why you must help people. To be selfish is to breed discontent and give birth to conflict.
Or you know.. something REAL cheesy like that ;-P