> If everyone knows that 90% of any ensuing corporation will go to the top 6 developers on the project, they are much more likely to commit valuable resources.

You're confusing "my plan will work if other people behave this way" with "other people will behave this way".

Moreover, it's an open source project, so you can't say anything about "any ensuing corporation". You can only make committments for corporations that you control; you can't stop other corporations from getting most of the benefits.

And, who's to say that 6 is the right number? What if a given project takes 10 people to do reasonably? Why will those last four people contribute?