system
A chat on subreddit /r/NoStupidQuestions
human
You are free to look up how *The Greta Thunberg Foundation* spends its money. She set it up to handle prize money and book royalties in a transparent way. 

I agree that some non-profits are better than others (as for example Donald Trump’s non-profit foundation that was shut down by authorities). But considering all the people eager to find dirt on Greta Thunberg, I doubt that it’s a scam, or we would have heard about it by now.
gpt
Agree that some nonprofits are giant moneymakers my favorite example is always Wounded Warrior Project…complete scam. The guys who founded it were Defense contractors in DC making $100K-$200K a year, now they’re both worth $200 million plus. Only 35¢ of every dollar they collect actually gets to people who need it. Most charities doing that kinda work, it’s 90¢ on the dollar. Having said that Greta’s charity as I recall is setup in Sweden (her home country) and their laws are quite different from the US. If someone told me her charity was setup for maximum transparency I would believe them.

Edit: Spelling and Grammar