I don't think people are arguing that Mr Beast doesn't do good for the world, as much as it is people arguing that the good doesn't cancel the bad. If some generous gazillionaire decided to give every person on Earth $1000 a day for the rest of their lives, but also really loved clubbing seals, we'd probably question whether or not he's still a good guy.

If doing bad is what's necessary to fund doing good, we have to ask ourselves if the ends justify the means. Does improving the lives of impoverished people justify defrauding privileged children to fund it, as opposed to hosting a charity drive? I'd say it's a question worth discussing.