I think what's getting lost here is that it's your app. You can do whatever you like with it. Sell it, give it away, flush it down the toilet, smash it with a hammer and burn all your notes. As the people who arranged some bits into a novel configuration, it's your right to choose how you want to distribute it. Obviously, without some way to make a return on investment, it would be difficult to find people to give you money to pay your bills while working on the next thing. But it's your decision to make and no one else's.

When I write an app, it's my right to choose how it is distributed in the world. If I want to sell it for 0.99, then it's my choice and I have to live with the risk of it not selling.

It is just as wrong for someone to take my work without paying for it as it is for me to take your work and sell it. In both cases, our right to choose for ourselves is being taken away.