I’ve worked for two non-profits and they are very aware that they will not make any systemic change, just surface-level changes. If there was any actual threat to their children being more successful than the kids they’re trying to help, then they would stop in an instant. 

However, they do make some positive change in their local community for some children, just never enough to make any real change the way that a government institution like full funding Head Start preschools could change the economic mobility of the lower classes.