Presumably such chats would need to be logged, read, programmed around, and monitored.

Virtually every piece of information you submit on the internet is logged and monitored anyway, for purposes of advertising, state surveillance, and occasionally to improve the products.

That certainly doesn't justify even more legal surveillance. Also, I believe they (openai) don't log from paid users - this would make sure they did. More parties involved again equals more chance for chats to be leaked.

You think they're not logged now? By companies whose existence is based on getting access to as much data as possible?

Yes