I don't know if in-video ads are a mark of a bad creator. It seems like it's one of the only ways to make money on YT if your primary product is videos (as opposed to having a larger brand, product, merchandise, etc).

So you can blame the platform for showing ads and pocketing the profit... Although I wouldn't off-hand, I don't know what the profits are, and YT has historically been operating at a loss afaik.