This seems like complaining that the BSD license does exactly what it intends to do.

Someone biulds a thing and puts it on the curb in front of his house with a sign:

I had fun building this and learnt a lot. Do with it whatever you want.  

Then someone else comes along, takes it, and sells it.
I fail to see how the inventor was taken advantage of. They presumably thought about which license they want to use and specifically chose this one.

Personally I believe that the rights of users to privacy and freedom are more important then a corporations right to use open source software to make proprietary software. There’s a reason why nobody uses FreeBSD and why Linux is the dominant open source operating system.