Yes, see below.
> Whose interests are the OpenAI board representing?
OpenAI has a weird charter which mandates the board to uphold a fiduciary duty not to the shareholders but rather to being "broadly beneficial". This is very uncommon. It means that the board is fiscally required to uphold safety above all else; if they don't, the board members could get sued. The most likely person to fund such a lawsuit would be Elon, who donated a lot of money to the non-profit side of OpenAI.
Here's the OpenAI page which explains this unique charter: https://openai.com/our-structure Excerpt: “each director must perform their fiduciary duties in furtherance of its mission—safe AGI that is broadly beneficial”