Earlier quoted context omitted.
Sam wanted to restrict Helen's free expression on the topic of beneficial AI in order to boost OpenAI's position. That suggests he cares more about the success of OpenAI than he does upholding the charter.
No, Sam wanted to be the first recipient of Helen's expression. So -- if appropriate -- he could make changes. Or he could not change, and she publishes anyway.
Where are you drawing this conclusion from? Nothing in the text suggests that was his intent - certainly his actions thereafter suggest that he was in fact more concerned with the potential harm to the for-profit company.