You're never 100% in control, but that doesn't mean you should try and maximize it.
If you want that sort of protection, BSL, SSPL, Elastic license, etc are what you want.
If you want to make Free Software, make it. Know that people you don’t like may use your software, even criminals may. That is what Free Software is. OSS is slightly different but similar.
If you want to make shareware, make shareware — no judgements on people who want to make money with their software and believe thats the best path.
I wish they would give back all the profit as well but that's another topic and the AGPL doesn't touch that.
Don't know about "big corporations", but in academia most people use Overleaf to share the editing of LaTeX papers, and it's AGPL software. In my lab we collaborate with many industrial partners, and they see no problem using that software either. We bought a quite expensive lab-wide license for Overleaf so that we can use more resources of their online offering. I have a friend at google who also uses it (but it's just a single data point).
I honestly don't understand what you are talking about.
Whether the software runs on my computer or not, if I am the user, I must be in control.
Whether the meal is prepared in my kitchen or not, if I am going to eat it, I must be in control.