Obviously it's in his own interest to, but it's also in our interest IMO.
Not taking sides here, just mentioning that the good he's done is probably bigger than his mistakes.
I agree with this and I actually started my post stating that he's a cryptocurrency supporter and a public figure. I don't deny the benefits of thins in increasing awareness, although he's controversial (and some may link crypto with his drug days). I don't know. But I don't deny that's good to have him (too) on our side.
But this shilling business is a bit too big and too obvious imho. And I don't like it, I have the right for such an opinion.