>you have to take the job that you can get

I live in Germany too, and my experience is quiet contrary to yours. Of course you won't always work for a company that "saves the planet", but surely people care about good morals when looking for a job, and some companies even adjust to that. A lot of my former and current colleagues quit jobs just because the companies they were working for were always prioritizing profit over morals, or they declined well paid jobs because they just didn't like the companies general business strategy.

Don't get me wrong though: of course you can't be super picky and always get a dream, green, social improvement focused job. That's not how it works.

Still: I would never want to work for a company that provides surveillance services for shady regimes.