Legalized yes, legitimized, certainly not. This is not a copyright issue, this is a loyalty issue: Betraying the people who helped you get where you are is the

Legalized yes, legitimized, certainly not. This is not a copyright issue, this is a loyalty issue: Betraying the people who helped you get where you are is the kind of move a company makes when they no longer care to be perceived as ethical. This is not an important factor for everyone, but it's usually a pretty big deal in the open source world.