These are my thoughts while driving home from a shopping trip...
subject to revision upon exposure to better ideas.
There is but one "natural" law... the animalistic survival of the fittest.
Whoever or whatever has the most lethal force overcomes whoever or whatever does not.
But that is not to say that this natural law is ultimately the superior.
Multiple inferior beings can and do overcome the superior individual.
Put simply, "majority rules".
Sometimes the mechanism used by the majority is by simple force,
but more often it is by developing social rules, laws, customs, religions, taboos, etc.
Sometimes it is by developing superior physical mechanisms, clubs,
guns, bombs, etc.
But even these are usually via mechanisms of social industry.
The physically inferior individuals of a group often use influence to obtain a superior position.
To speak of property rights as being ownership is entirely a social convention.
For example, real estate is commonly considered belonging to some owner,
and at first might seem to belong to the superior individual(s).
But this is purely cultural, as seen in the traditions of Native Americans
where land and all that it contains (including the people) is considered to be one, and can not "owned" by any person.
Intellectual property (copy rights, patents, etc) are still derived from social behaviors,
and ownership eventually depends upon the ability to enforce the social rules
that have been establised such as licensing, franchising, leasing, renting, etc.
P.S. Some people believe whoever has the most toys when they die, wins
