Sure, but thinking just because it's a publicly traded company "anything goes" is equally deeply misguided. Whoever owns your company or organization, we should always respect and try to do the best for our customers and everyone involved -- we don't get to destroy things in the name of profit.

This behavior is not only destructive of their legacy, the promises they kept, but of course of their own reputation as a game company... I don't see any independent developer choosing Unity from now on (without a radical change for the company) in their right minds.

I'm pretty sure this wasn't the only solution to the situation. If they're going to ruin the company anyway... might as well make it open source. Start charging a large amount for a license. Cut the company size (maybe competition for other open source software is too great, and they couldn't survive at that size!). We have the choice to do the right thing, although many times that isn't the easy thing to do.

This goes even to society at large. No social or economic system can exist without ethics -- to believe so is delusional. Not communism, capitalism, social democracy, or something else(and I think we need some other ideas in the mix... but that's another story!) can function well when individuals don't have a good grasp of ethics. Governments are made of people making decisions, and companies likewise. No matter how much structure you impose on top, if people don't generally cooperate, a good outcome is impossible (garbage in, garbage out). So, like a friend says, "Be excellent to each other, or else..." :)