> That's the entire point of copyright.
And the entire point of copy/left/ is to make the code a public good, a commodity. Everyone owns the code I write, and everyone is entitled to make a business from it.
If they have better marketing than me, earning a lot more money than me with the verbatim program, that sounds like my software was priced wrong and I should set the price higher. How high -- $50,000/copy? Who knows. If someone wants to make themselves my distributor, they /should/ get paid for that.
That kind of competition -- yes, it is competition -- would inspire /cooperation/. That would give both of us, the distributor and myself, incentive to work together to maximize both of our profits.
Another example is with my program itself. It's a desktop application, a local management client for a tablet that otherwise must use its manufacturer's cloud service. I am directly competing with the manufacturer. When I receive money for my program, $12/year, they loose a customer of their service, -$36/year. BUT -- many, and I mean MANY of my customers told me they would have returned their $500 tablet were it not for my software, after using which, made them keep the hardware. I estimate that my software has saved the manufacturer over $500,000 in returns.
That means: my software has /increased/ the total value of my competitor, and we are /both/ making profit. My software literally expanded their market.
And if a distributor of the verbatim program wants to expand /my/ market, I'm all for that. But I don't think they will, because /they know/ that anyone else can do exactly what they're doing. They need to add something of value. Sometimes, marketing can be value, sure. More value is derived from the program itself -- that's why people buy it in the first place. Not because of its marketing, but because of its function.
And if they improve my program, the function, they MUST release the complete corresponding source code, and they MUST do so granting forwards the same copyleft privileges I gave them. And that means I can, and will, take their improvements and merge them back into my original product. And since I have the first mover advantage, the reputation, the search engine hits, the community engagement, I will probably win.
And if I don't win, the user /does/. They get a better product at a better price. That's the WHOLE POINT of free software, that it's good for the user, not for the developer. It's the kind of software I use myself, so I elect to write it, too. It's the world I want to live in.
You have an obsolete understanding of the world, a misunderstanding of the motivations of free software, and are totally wrong about the dynamics of selling free software.