People that do not work in tech do not follow tech news closely. They are happy to use Facebook for the social features it offers. They wouldn't have heard of problems with Cambridge Analytica, hearings in the Senate, tech over-reach etc. I can imagine it is fulfilling to work for Facebook because regular users like Facebook.
If someone cares to fix problems with social media, then it makes sense to do it from inside as well as outside.
If someone cares to fix problems with social media, then it makes sense to do it from inside as well as outside.
(I don't work for Facebook.)