Well, exactly.
Imagine, say, several thousand years ago, in some random tribe, an ancient wise man sitting by the campfire and telling stories... just because he wants to tell them and because he likes to tell them. Eventually, it is possible that his fellow tribesmen are going to like his stories so much that they are going to give him food and clothes and whatnot - from their own decision, because they like it. Eventually, it is even possible that the man will be so highly appreciated that he will get enough to sustain his living from just these gifts.
But will it be normal, then, if some other man - let's say from another tribe - visited him and agreed with him to learn his story in order to tell it in his own tribe, but he will not do it because he likes the story or wants to tell it and enrichen it with his own expressions and talent*, but only because he saw that he can easily get things for his living for it? One might say: Well, but who cares, technically the result is the same. The point is that the other tribe can hear the nice story as well. Is it? I say
not. And if later the man, inspired by seeing another artist getting appreciated for his work, will start to create clay statues of characters from that story to exchange with his tribesmen for even
more things,
because he knows that they will give him more things for them, now, doesn't it all sound a bit ridiculous?
In other words, where we are - where is the motivation? If somebody makes a painting related to Tolkien, because he wants to, and later gets to eventually sell it, well, good for him. If somebody purposefully makes a Tolkien-related painting only because he knows it will sell... well?
And if somebody purposefully makes a Tolkien-related
gambling game (i.e. the purpose to make money is there "twice", through and through), now, what is
that?
*Note that this speaks (at least partially) in defense of PJ: a thing I rarely do
