The architect of the coup (Ilya) is strongly opposed to open-sourcing OpenAI's models due to safety concerns. This will not - and would not - be any different without Sam. The decision to close the models was made over 2 years before the release of ChatGPT and long before anyone really suspected this would be an insanely valuable company, so I do believe that safety actually was the initial reason for this change.
I'm not sure what you mean by your second paragraph.