This person actually has a very dubious reputation, despite the fact that this person was able to conquer the whole world. In a literal sense, this man has done a lot for us, ordinary people. But he was wrong with the BTC.
People like him lie constantly for their own benefit, of course, we don't know for sure what he wanted to achieve by making such a statement in the media, but the fact that it was not just so, I think many obviously
I don't think Bill Gates did this for his own benefit. He is already very rich and he is probably doing things he do because he loves to do them. He was wrong in the past on great things too and I think he was wrong this time too. Unlikely jp morgan who spread fud and created own cryptocurrency.