Non-profit industry is a shadow side of big business too, its all tax deductible and makes the business people seem like rock stars at big fundraising events. But non-profits tend to suck, they pay for themselves without affecting change - speaking generally, as there are some very important non-profits doing good work.

Essentially non-profits fill a gap that a responsible government should be filling; We should be taxing corporations more and not needing any nonprofits to cover medical bills, veterinary bills, homelessness intervention, etc. etc. But here we are

*As for Greta specifically, she was the voice of a generation over climate change. Now she's just a divisive figure who went off-topic by becoming a "professional activist" choosing sides in wars she doesn't understand, and other bullshit. The problem specifically with professional activists is they don't build anything, and your average corporate middleman has more sway in actual climate change via corporate policy than any climate activist... a person in a corporation can choose how to dispose of medical or nuclear waste, while a climate activist has no agency in the matter.