While the young Bill Gates did many disgusting things, after retiring he behaved quite decently in comparison with other similarly rich people.
In any case, he would have been an infinitely better president than people like Bush Junior or Trump. Probably also better than people like Biden, who is not remembered for doing something good, but only for not being so bad as his predecessor and successor.
I did not follow this affair more thoroughly, but the link provided by you shows only a suspicious relationship between Nathan Myhrvold and Epstein, without saying anything conclusive about Gates.
In any case, he would have been an infinitely better president than people like Bush Junior or Trump. Probably also better than people like Biden, who is not remembered for doing something good, but only for not being so bad as his predecessor and successor.