Your post, whether you realize it or not, assumes that the labor theory of value is true.
The difficulty of producing the first copy is of almost no significance economically, in comparison to the marginal cost to produce one more copy than already exists.
The recipe may be difficult to create, but it is dead simple to copy. The song is difficult to compose, but easier to perform, easier still to play a recorded performance, and easiest of all to copy a recording. The book is hard to write, but easier to read, and easiest to copy.
We are not entitled to any work for free. But we have a reasonable economic expectation that what we pay to enjoy it will be close to what it costs to create an additional copy. If we elect to pay more, it will be because we wish to encourage the artist to create more works at a reasonable cost. Whether you believe that the artist is entitled to more, or not, depends in large part on whether you believe that culture should be an oligopoly good, or a commoditized good.
The difficulty of producing the first copy is of almost no significance economically, in comparison to the marginal cost to produce one more copy than already exists.
The recipe may be difficult to create, but it is dead simple to copy. The song is difficult to compose, but easier to perform, easier still to play a recorded performance, and easiest of all to copy a recording. The book is hard to write, but easier to read, and easiest to copy.
We are not entitled to any work for free. But we have a reasonable economic expectation that what we pay to enjoy it will be close to what it costs to create an additional copy. If we elect to pay more, it will be because we wish to encourage the artist to create more works at a reasonable cost. Whether you believe that the artist is entitled to more, or not, depends in large part on whether you believe that culture should be an oligopoly good, or a commoditized good.
I happen to prefer the latter.