You are being downvoted, but the entire video game industry is the living proof that you can mistreat your developers and use a high churn rate to make sure you never run out of them.

Those are not third party devs, no?

Not in the given example, but one can make a case that console makers behave the same way Apple does regarding their closed platforms.

It's about your company values. If you put greed above anything else then you won't get business from me. I try to avoid companies who support Apple.

Ah yes, I too have seen that companies are punished for their greed!