It depends. I have worked for nonprofits and know a lot of people who do. Word of mouth/connections with people already working there is a good way to find relatively decent NGO work. You would likely be paid near minimum wage though, it’s true, but a lot of NGOs do have well-meaning people who try to make a difference working at the lower levels; they normally have a bureaucratic layer that sucks but your actual coworkers are normally quite sound if you can find the right job. And some NGOs still do overall decent work even if the leadership sucks; they aren’t revolutionary organisations by any means, but when you’re looking at jobs, you’d be comparing them to some generic corporate job which sucks more.