Yeah to me he seems genuinely generous. Obviously there is a part of it being done to attract more viewers (Otherwise he could simply not upload the video at all) but from my, granted limited, experience of his videos a lot of the money he makes goes in to making (I.e. donating more) new videos. Very different from getting millions of TikTok views for the price of a flower bouquet.
Why are those questions the end all be all of the discussion? Many good things are done in the world that have a variety of motivations. He could get views in a variety of ways but the fact that he's doing it by helping people shouldn't be dismissed just because he wouldn't spend millions of dollars with no one watching.
Not to suggest he's operating in any way like a non-profit, but they all receive money and then distribute that money in ways that either increase the future money they can use for their mission or directly on the mission itself. The fact that he's built a self-sustaining model for helping individuals without merely forking over his own assets is impressive.