I really don't see this as a problem, the current org already has a focus on a product it innovated and the innovator leaving for their own venture allows thems

I really don't see this as a problem, the current org already has a focus on a product it innovated and the innovator leaving for their own venture allows themselves and fellow risk takers to capture more value for their idea, thus distributing wealth across a broader spectrum. This is how it should be. Had said innovator brought their product to fruition under the current corporate umbrella they would get a bonus and promotion at best. Meanwhile the product would not be the corporations core focus or competency and would most likely be diluted to help push their core product.