Kissinger (R, foreign policy) once said that Summers (D, economic policy) should be given an advisory post in any WH administration, to help shoot down bad ideas.
No one thinks Larry Summers has any insights on AI. Adding Larry Summers is something you do purely to beg powerful, unaccountable people "please don't stop us, we're on your side".
He did help shoot down the extra spending proposals that would have made inflation today even worse. Not sure how that caused suffering and death for anyone.
And he is an adult, which is a welcome change from the previous clowncar of a board.
Although, he's also partly responsible for the existence of Facebook by starting Sheryl Sandberg's career. Some people might think that's good.